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Democratic People's Republic of Korea Naval Battles

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Post 19 Jan 2011, 15:03
The Democratic People’s Republic of Korea is currently an officially declared socialist state following its own political socialist-oriented Juche ideology (previously DPRK declared itself communist until 1992).
It should be stressed how the country is more closely associated to the other four current existing communist countries (China, Vietnam, Cuba, Laos), compared to other countries (India, Sri Lanka, Bangladesh etc.) that include only a de jure reference to socialism in constitution. The Korean People’s Navy (officially “Korean People's Army Naval Force” but also shortened by DPRK sources) has a long tradition of naval warfare since the establishment of the republic.

During the late stage of WW2, Korean guerrilla units (officially part of the communist Chinese forces) joined the Red Army offensive in eastern Korea and coordinated in liberating the northern cities while the US Army occupied the south of the nation. The southern regime was particularly brutal: repressing peasant’s revolts and massacring every kind of leftist (or just democratic) opposition with hundred thousands of deaths (including civilians, relatives and people just randomly accused) during the “Bodo League Massacres” and the “Jeju Uprising” (American advisors confirmed on the scene).

Interestingly, there were 3 confirmed cases of South Korean warships defecting to north after mutinies.
After a failed assassination attempt on Kim Il Sung and continuous border skirmish, the conflict erupted into the Korean War.
The Korean People’s Navy possessed only a very small Navy composed by few small crafts and could achieve only limited operations during the first year of war.
The Korean War turned the conflict with the most massive unbalance of power disfavoring a communist Navy in combat: together the US, UK and allied Navies amassed aircraft carriers, battleships, cruisers, destroyers and countless of smaller ships! With no option for directly opposing the enemy, the Navy begun to rely on extensive fields of naval mines to inflict sporadic losses, while coastal batteries engaged in countless of skirmishes.

This page does not list the numerous incidents with enemy warships targeted by coastal batteries of the Korean People’s Navy (except for rare peculiar episodes).
Multiple warships (including destroyers and cruisers) suffered damages and casualties. Damage was usually light to moderate, but sporadically it was more serious.

With the end of the Korean War, the Korean People’s Navy rebuilt its assets and grew in strength and power thanks the support of both Soviet Union and China.
Keeping itself neutral between the two communist super-powers, the Navy could also develop indigenous shipbuilding programs.
Communist guerrilla resistance in South Korea lasted until 1957 in the southern regions of Yeosu and Suncheon (too distant from the border to receive direct supplies).
A number of skirmishes during the whole Cold War saw interesting successes against South Korean vessels, when the southern country was ruled by a military junta after coups d’états. During the ‘80s however, the suppression of local internal resistance movements in South Korea led the necessity for increased infiltration operations of agents and special forces with an increased number of losses due enemy interception of these crafts. It is only in last years that surfaced news about South Korean operations in the DPRK territory to make sabotages and assassinations: there are very little details of these operations as for their losses (Haeju Bay Raid in 1968).

After the Cold War, the Korean People’s Navy faced the enemy again in late ‘90s and early 2000s. The Navy currently remains the least-known among socialist-oriented states due official secrecy concerning classes, numbers and firepower of warships. Interestingly the Navy nowadays include a mix of old Cold War Soviet/Chinese classes, but also multiple indigenous classes both old and new designs. A strong component of the modern navy is the submarine branch: relying on high number of midget and coastal submarines for ambushing attacks.

NOTE: The Korean People’s Navy, like most of socialist-oriented navies built up after the original Soviet Navy tradition, bear no Western-style “Naval prefix name”.
The shortened term “KPN” can be used in a similar way (as adjective) as for the Chinese “PLAN”, however this text make an extended use of the term.

Most of international media use the term “North Korea” opposed to “South Korea” to describe the two countries. Formally, both nations claim to be full legit representative of the Korean people. The text focus on viewpoint leaning toward the DPRK, out of coherence with similar works, while retaining a neutral stance on military affairs.

Official data (books, articles) coming from the DPRK focusing on the Korean People’s Navy are almost not existing in the web!
Out of necessity, this text make use almost entirely on South Korean and Western sources retaining a neutral stance. Cross-referencing with Soviet/Russian data (including the works of by (c)Alexander Rosin on the Russian blog ).


Before Korean War:

7 May 1948
South Korean minesweeper ROKS Tongcheon defected and joined the Korean People’s Navy. Ex-Japanese auxiliary submarine chaser.

15 May 1948
South Korean minesweeper ROKS Gowon defected and joined the Korean People’s Navy. Ex American YMS-473

11 May 1949
South Korean minesweeper ROKS Gangwha defected and joined the Korean People’s Navy. Ex American YMS-245


Korean War:

night of 25/26 June 1950
Near Pusan, in the Korean Straits a Korean People’s Navy armed troop transport intercepted and then chased by the South Korean submarine chaser ROKS Baekdusan.
The engagement caused a direct hit on the South Korean ship on the bridge (two dead and two wounded), but the return fire sunk the Korean People’s Navy ship. Up 600 men were killed (both crewmembers and soldiers carried onboard). The troop transport was a former South Korean merchant (1000 tons) that defected to North in 1949.
Ex American PC-823.

At the same time, a Korean People’s Navy convoy of 20 landing schooners escorted by 2 submarine chasers and 1 minesweepers landed troops in Kangnung.
Another convoy, escorted by 2 minesweepers, 1 patrol ship and 1 submarine chasers, landed troops near Samcheok.
Western sources report South Korean minesweeper ROKS Gapyeong attempted to prevent the landing, but fought and was forced to withdraw by Korean People’s Navy minesweeper n°31 near Okgye (Gapyeong claimed to have sunk 2 landing schooners). The brief clash was one of the rare direct gunnery fights of the War ending into a North’s success.
According Soviet sources, reports of this incident are wrong: minesweeper n°31 engaged in battle on 29 June and no schooner was lost in action on 25 June.
However, it is possible that indeed ROKS Gapyeong briefly engaged a Korean People’s Navy escort unit before retreating.

On the very same night between 25/26 June, the South Korean submarine chaser ROKS Samgaksan opened fire against the defenseless Soviet cable-ship Plastun. The Soviet ship suffered damages, 3 crewmembers killed (including commander) and 13 wounded.

29 June 1950
Battle of Gangneung
Korean People’s Navy minesweeper n°31 escorted a small convoy that landed supplies at Gangneung, when she engaged the South Korean minesweeper ROKS Dumangang, sinking her.
The South Korean minesweeper was escorting a small transport, Korean People’s Navy pulled back while the second ship recovered sailors from sea.
American cruiser USS Juneau and destroyer USS De Haven took action; while most of the Western sources mistakenly believe they sunk the South Korean vessel in a friendly-fire incident, actually the destroyer’s report clearly describe the Korean People’s Navy action. Subsequent fire from the American ships however sunk one schooner of the Korean People’s Navy resupply convoy.
NOTE: Thus, contrary on what most of the Western/American sources report, the USS Juneau did not committed a friendly-fire accident but sunk a legit North Korea fleeing target, on the other side the Korean People’s Navy scored their only confirmed surface victory of the Korean War.

2 July 1950
Battle of Jumunjin.
The most famous naval action of the Korean War.
It was the only direct attack attempted by Korean People’s Navy (the Navy was composed only by small boats).
A group of four motor torpedo boats attacked the American cruiser USS Juneau, the British cruiser HMS Jamaica and the frigate HMS Black Swan.
The attack was courageous but spotted in advance and no torpedo hit the targets.
Return fire sunk or destroyed the motor torpedo boat n°22, n°23 and n°24 (two units directly sunk, one grounded and lost) while n°21 survived even if suffered damages.
Korean People’s Navy wrongly believed to have hit and sunk the American heavy cruiser USS Baltimore (she was not involved in the war), while USS Juneau was damaged.
This action was widely reported by the DPRK war propaganda: Kim Kun Ok, commander of n°21 (who claimed sinking the Baltimore) was awarded.
After the main engagement, the Allied units intercepted and sunk two patrol boats (small OD-200 soviet class).
American sources believe all the ships were somewhere part of a convoy, but Soviet sources report the motor torpedo boat attack was planned in advance.
n°21 on display at museum. She and her sister were former Tupolev-G5 crafts of WW2 era.

3 July 1950
South Korean minesweeper ROKS Gimcheon intercepted and sunk a convoy of three schooners carrying supplies.

On the same day, the American cruiser USS Juneau sunk a group of seven fishing trawlers. Two Korean People's Army Air Force planes attacked the British frigate HMS Black Swan, inflicting minor damage.

22 July 1950
South Korean minesweeper ROKS Gimcheon sunk three small ships.

23 July 1950
South Korean minesweeper ROKS Daejeon (ex-Japanese) engaged in a firefight with a Korean People’s Navy vessel. Unclear details.

27 July 1950
South Korean submarine chasers ROKS Geumgangsan and ROKS Samgaksan intercepted a convoy and sunk 12 small sailing vessels.

2 August 1950
British destroyer HMS Cockade and HMS Cossack bombarded the Mokpo harbor and sunk one steamer.

3 August 1950
South Korean minesweeper ROKS Gyeongju sunk seven sailing boats.

7 August 1950
South Korean minesweeper ROKS Gyeongju sunk two motorboats.
Unidentified South Korean warships sunk other four small vessels.

15 August 1950
South Korean minesweeper ROKS Gwangju encountered a large convoy of 45 small ships and destroyed it: 15 small vessels sunk and 30 ships surrendered.
This incident appear to be the single event with the highest number of naval losses suffered by a communist/socialist Navy during a single encounter in open sea (surpassed only a by a single episode during the Chinese Civil War, but involving grounded junks).
The nature of the Korean People’s Navy vessels (small defenseless wooden boats) was a key reason of these high casualties.

Between 20 and 21 August 1950
South Korean minesweeper ROKS Gwangju sunk a motorboat, captured another motorboat and damaged a third one.

25 August 1950
South Korean submarine chaser ROKS Baekdusan sank a sailboat.

On the same day, minesweeper ROKS Guwolsan sank two motorboats (carrying troops, one 100tons and the second 70tons).

On the same day, minesweeper ROKS Gaeseong attacked a convoy and damaged 14 small sailboats (of 15).

On the same day, minesweeper ROKS Gilju in three separate clashes sank three ships and damaged other eight.

31 August 1950
South Korean submarine chaser ROKS Geumgangsan sank two motorboats and damaged a third one.

Minelaying operations:
Korean People’s Navy forces begun to deploy anti-ships mines especially in the area of Wonsan.
For such operations, apparently only had-hoc converted small junks and boats employed.
There is no official record of names/numbers of these small vessels, nor specific claims of each field that can match with each enemy loss.
Such information (if survived the war) could be in DPRK war literature.

10 September 1950
Close Haeju, one Korean People’s Navy minelayer schooner attacked and sunk by the South Korean submarine chaser ROKS Samgaksan.

13 September 1950
South Korean submarine chaser ROKS Samgaksan sank three small boats.

26 September 1950
American destroyer USS Brush heavily damaged by mine. 13 killed.

28 September 1950
South Korean minesweeper ROKS Gapyeong sunk by mine. 26 killed.

30 September 1950
American destroyer USS Mansfield damaged by mine. 27 wounded.

1 October 1950
American minesweeper USS Magpie sunk by mine. 21 killed.

2 October 1950
South Korean minesweeper ROKS Gaeseong damaged by mine.

12 October 1950
Near the Wonsan Harbor a mixed attack of coastal artillery and use of minefield sunk two American minesweeper, USS Pirate and USS Pledge, while the artillery damaged the USS Redhead. Mines and gunfire alike hit both USS Pirate and USS Pledge. 12 Americans were killed and 43 wounded. Americans claimed success, stating they silenced the guns (quite reasonable they just stopped to fire after having finished the two minesweeper and having used a large chunk of their ammunition).
Photo of USS Pirate sinking, while Americans claim "victory" for unexplained reason, the combined sinking off two American Warship (and the damage of a third one) was the biggest score by North Korean minelaying actions combined with ground gunfire. The success however had little overhall strategic impact by the sheer numbers of American and allied warships.

18 October 1950
South Korean minesweeper ROKS Gonju sunk by mine.
Ex- American YMS-148.

18 December 1950
American sources allegedly reporting how destroyer USS McKean sunk a Soviet submarine with depth charges are completely mistaken.
No Soviet submarine ever operated in nearby proximity of American warships during the Korean War, while American vessels were paranoid over the possible presence of enemy submarines.

Early December 1950
Japanese merchant Senzan Maru (cargo of flour) damaged by mine.

7 January 1951.
Ten disguised coastal artillery guns targeted the Thai frigate HTMS Prasae, while sailing alongside the North Korean shore for a routine patrol.
The ship suffered multiple hits and grounded with serious damage, burning as consequences. It was the most significant success of Korean People’s Army coastal defense (alongside the sinking of two American minesweepers on 12 October).
Western sources report the ship accidentally grounded and abandoned, but Soviet observers fully backed the Korean People’s Army claim of direct action: it is also possible the ship grounded out of incident while avoiding the shelling.

2 February 1951
American minesweeper USS Patridge sunk by mine. 8 killed, 6 wounded.

5 May 1951
South Korean patrol ship JML-306 sunk by mine. 6 killed, 18 wounded.
Former Japanese minelayer.

24 May 1951
American cruiser USS Manchester and destroyer USS Brinkley Bass sunk four minelayer schooners. (11 killed, 1 wounded). Each schooner carried 4 M-26 type mines.

12 June 1951
American destroyer USS Walke suffered a powerful explosion and heavy damages with 26 dead and 40 wounded.
Reason for the cause was one of the many Korean People’s Navy mines, some American sources claim there were torpedo-parts allegedly recovered on the ship, but this is unproved: no communist submarine ever engaged in action during the Korean War and no Korean People’s Navy motor torpedo boat was operative at the time of the damage. The destroyer was repaired.

7 October 1951
American destroyer USS Ernest G. Small damaged by mine, 9 KIA and 18 WIA.

26 December 1951
South Korean submarine chaser ROKS Jirisan sunk by mine. Heavy casualties: the entire crew of 80 killed.

28 August 1952
American fleet tug USS Sarsi sunk by mine, with 4 dead and 4 wounded.

16 September 1952
American destroyer USS Barton damaged by mine.

18 June 1953
For the first time since the first year of war, a brief surface engagement occurred between a Korean People’s Navy patrol boat and a South Korean patrol boat in Wonsan area. The clash was brief and the Korean People’s Navy vessel pulled back under cover from 105mm coastal artillery. Apparently, no damage reported on both sides.



28 December 1959
Korean People’s Navy submarine chaser n°205 (project 201 class) attacked the Soviet spy-ship GS-34, inflicting damages and causing 1 killed and 3 wounded.
Soviet sources of the time accused South Korean Navy to be involved, but it is now clear it was a Korean People’s Navy vessel.
Reason of the incident are not clear: while it is possible a misidentification (friendly-fire), Russian sources state the attack was deliberate.
It is possible the event caused by an over-zealous behavior of the Korean People’s Navy commander.

5 July 1965
A Korean People’s Navy midget-submarine accidentally stranded and then seized by South Koreans on a mission to land agents. Crew and passengers escaped before the boat was discovered.

19 January 1967
South Korean patrol ship ROKS Dangpo entered into the DPRK waters, attacked with coastal artillery and MiG-21 fighter-bombers. The ship sunk with 39 dead and 15 wounded.
Ex-PCE842, Ex-Marfa. Admirable class converted as patrols.

April 1967
South Korean Navy claim the sinking of several infiltration crafts. Little detail and no clear confirmation, but they appears likely in coordination with attempted build-up of communist insurgency in South Korea (ultimately failed).

1-2 June 1967
South Korean batteries fired upon an infiltration craft, and the following day Korean People’s Army batteries fired upon a South Korean patrol boat.

19 June 1967
Korean People’s Army ground forces attempted to seize two alleged South Korean fishing boats: they escaped, but one of them named Hanhungho sunk while on tow due damage suffered. 1 South Korean sailor killed, 2 wounded. After recent South Korean revelations of own infiltration attacks, it appears more likely the boats were indeed infiltration crafts and Korean People’s Army guards fired upon one of them on the shore before or later an attempted infiltration.

20 September 1967
A group of alleged South Korean fishing boats shelled by North Korean coastal artillery: one fishing boat sunk (one wounded). After recent South Korean revelations of own infiltration attacks, it appears more likely the boats were indeed infiltration crafts and Korean People’s Army guards fired upon one of them on the shore before or later an attempted infiltration.

7 October 1967
A US soldier drowned after fell in water wounded, when an American riverine patrol boat came under gunfire from the shore while sailing in Imjin River.

21 December 1967
North Korean ground forces attempted to seize a group of South Korean alleged fishing boats: one fishing boat seized and sunk (6 killed). After recent South Korean revelations of own infiltration attacks, it appears more likely the boats were indeed infiltration crafts and Korean People’s Army guards fired upon one of them on the shore before or later an attempted infiltration.

11 January 1968
A Korean People’s Navy vessel sunk one alleged South Korean fishing boat and seized three other fishing boats, taking 20 prisoners. After recent South Korean revelations of own infiltration attacks carried against DPRK in the earlier decades of post-war (with significant casualties), it appears likely the “fishing boats” lost due “communist aggression” were indeed infiltration crafts on special missions.

23 January 1968
Seizure of USS Pueblo
Korean People’s Navy submarine chaser n°31 (project201 class) of the East Fleet under the command of Pak In Ho (later awarded), with support of three project123K class motor torpedo boats (n°601, n°604 and n°606), attacked the American Spy-ship USS Pueblo, that was damaged with gunfire. Americans suffered 1 KIA, and 82 POW (including 4 WIA) and Korean People’s Navy vessels boarded and seized the vessel, capturing a considerable amount of surveillance’s data seized (crew had time to destroyer only a small fraction of it), scoring a significant propaganda and intelligence victory. Today the ship, while still commissioned by the US Navy, kept in Pyongyang as museum-ship (South Korean and American surveillance failed to identify and intercept the KPN moving the ship from the eastern to the western coast, passing Tsushima straits). Interestingly, while the American side still claim the ship operated in international waters, data recovered aboard the ship and passed to the Soviet indicate how the Pueblo deliberately intruded the Soviet (and DPRK) national waters in earlier operations.

Today the ship, while still commissioned by the US Navy, is kept in Pyongyang as museum-ship.

23 June 1968
Haeju Bay Raid
South Korean Navy carried an infiltration mission with 15 naval frogmen into the Haeju Bay, supported by three South Korean vessels, to board a specific Korean People’s Navy naval vessel in Yellow Sea, and kidnap (or kill) a key officer. The operation turned a failure, due miscommunications of the different South Korean units and presence of defensive wire obstacles in water, units of the Korean People’s Navy were involved and South Koreans admits the loss of 6 frogmen (2 believed to be captured alive, according South Korean sources). Currently this is one of the few instances known of deliberate South Korean infiltrations in North Korea admitted by South attempting an spec-op frogmen attack on naval vessels (possibly it was a logistic/auxiliary command KPN ship).

20 August 1968
A Korean People’s Navy infiltration craft was intercepted off Cheju Island: 12 agents killed and 2 captured.

4 April 1970
Korean People’s Navy infiltration craft sunk by South Korean forces on the Yellow Sea.

5 June 1970
A pair of Korean People’s Navy patrol boats boarded and captured the South Korean broadcast-vessel I-20 (120 tons). 20 sailors captured.

15 February 1974
Two Korean People’s Navy attacked a couple of South Korean alleged "fishing vessels" (one of them reportedly named “Suwon-32”), sinking one and seizing the other. DRPK press claimed the Navy sunk only a single vessel, reported as a spy-boat/infiltration craft. 12 men believed killed on the sunk vessel. While South Korean sources only briefly mention this as an attack against fishing boats, in modern times it is revealed how during the first half of Cold War, South Korea dispatched many infiltrators to attack DPRK (before the trend completely reversed during ‘80s) and it is highly likely this was an attempted infiltration.

28 June 1974
South Korean maritime police patrol boat n°863 (a former Japanese ambulance ship), surrounded by three Korean People’s Navy patrol boats: after resisting at seizure, she sunk in action. 26 killed and 2 captured.
South Koreans scrambled Phantom fighters to retaliate and sink the North Korean vessels, but they give up after a confrontation with MiG fighters and without observing the ships.
While not part of the South Korean Navy (it was Maritime Police), this was indeed the first confirmed (also by western sources) sinking scored by the Korean People’s Navy in naval surface engagement.

26 February 1975
A South Korean destroyer deliberately rammed and sunk a DPRK fishing vessel. Unknown casualties.
Details of the ROKS ship involved is unknown.

28 April 1978
A Korean People’s Navy infiltration craft attacked by a South Korean maritime police patrol boat, suffering 4 KIA. 1 South Korean killed and 4 wounded. Unclear if infiltration craft sunk or seized

21 July 1978
A Korean People’s Navy infiltration craft attacked by a South Korean maritime police patrol boat, suffering 6 KIA. 2 South Korean killed and 1 wounded. Unclear if infiltration craft sunk or seized

21 June 1980
A Korean People’s Navy infiltration craft attacked by a South Korean patrol boat, suffering 9 KIA and 1 POW. 2 South Koreans wounded. Unclear if infiltration craft sunk or seized

1 - 2 December 1980
Namhae Incident
South Korean forces identified an infiltration craft and destroyed her using an amphibious ship manned by the Army. In the following firefights (lasted until 6 December), 9 agents died (2 apparently killed during the shelling of the infiltration craft) alongside 3 South Korean soldiers (and other 3 wounded).

1 June 1981
A Korean People’s Navy infiltration craft sunk by South Korean coastal artillery, 9 sailors were killed, one was captured. 3 South Koreans killed.

13 August 1983
A Korean People’s Navy infiltration craft was sunk. 5 Killed.

4 December 1983
Dadaepo Incident
South Korean forces intercepted and sunk a semi-submersible infiltration craft (named “Gongjag” by south Koreans). 2 agents captured on ground (a second smaller boat that landed them from the mother-ship was found, unclear but likely just an inflatable boat) and 3 are believed to have died when the mother-ship was sunk by Navy and Air Force. Both boats carried heavy weapons including surface-to-air missiles, rockets and many machineguns.

20 October 1985
A Korean People’s Navy infiltration craft sunk by South Korean coastal artillery. At least 2 agents killed.

1 January 1986
Korean People’s Navy seized the Japanese fishing vessel Kaisei Maru n°55 for violating the border; however she was released on 17 April.

24 April 1986
A Korean People’s Navy infiltration craft sunk after a naval engagement with South Korean vessels. 2 Killed and 4 wounded.

1 January 1987
Korean People’s Navy patrol boat boarded and captured the South Korean fishing boat n°27 Tongjin-ho.
12 crewmembers surrendered without resistance and later reported as deserted (in later incident of 1995 DPRK released South Korean citizens who wished to return).

1 May 1995
A South Korean fishing vessel damaged by a Korean People’s Navy patrol vessel, 3 sailors were killed. 5 others were captured and then released.

17 September 1996 - land fighting lasted until 5 September 1996
A Korean People’s Navy Sango Class submarine accidentally grounded on the Southern coast on East Sea in Gangneung. 3 agents were landed on 15 September and submarines was supposed to recover them. The 26 crewmembers and commandos damaged the submarine and attempted to evade capture: 11 sailors committed suicide (or were executed according different source) on the first moments.
Survivors split in pairs and attempted to reach the border, while chased by South Korean soldiers and police: 13 killed in action, 1 capture alive and 1 who managed to cross-back in North Korea.
South Koreans suffered 8 killed in action, 4 deceased in incidents, 27 wounded, additionally also 4 South Korean civilians died.
Currently the submarine is kept on display in South Korea.

Photo of the abandoned submarine: note the damage due intentional fire in tower, to prevent enemy's intel. The Sango or Sang-O class (original KPN nomination is unknown) submarines are coastal submarines built in attack and infiltration variants: with over 40 boats in service (including an updated enlarged variant).

22 June 1998
A North Korean small Yugo Class submarine trapped by nets of South Korean fishing ships.
When the South Koreans towed her, the submarine suddenly sunk (likely scuttled by the crewmembers). Once the wreck was recovered, the 9 crewmembers found dead had sign of having committed suicide. DPRK press officially claimed the vessel was on a training mission and the blamed the South Korean authorities for failing preventing the deaths.

Recovery of the submarine by South Koreans. Interestingly, the “Yugo” class (older version reported as “P-4” class, both are not official names of KPN!) was named after the mistaken assumption it was based upon Yugoslavian design. Indeed it is a national design, constantly upgraded and exported to Iran (built locally as “Ghadir”).

18 December 1998
Battle of Yeosou
A Korean People’s Navy semi-submersible infiltration craft of I-SILC class observed the previous day, was chased and sunk by South Korean warships. Wreck later recovered and 4 crewmembers assumed dead (one body recovered). DPRK press sources denied the whole event, but visual evidence is unconfutable.

Photo of the infiltration vessel recovered by South Koreans.

15 June 1999
First Battle of Yeonpyeong
Increased tensions over fishing rights and naval borders brought to military confrontation.
Korean People’s Navy dispatched a group including 3 motor torpedo boats (Kusong class), 4 ex-Chinese Type062 class patrol ships, project201 class submarine chasers, multiple small gunboats of Chong-Jin class.
Some sources wrongly list the more powerful gunboats of Taechong class as involved in battle.
South Korean force was more powerful, including small crafts, multiple Chamsuri and the larger and powerful Po Hang class corvettes.
Battle begun with multiple ramming attacks: two Chamsuri attempted to ram on both sides the patrol boat n°381 (Type062) and her crew opened fire with 25mm.
A confused battle at close range begun: one Korean People’s Navy motor torpedo boat sunk, patrol boat n°684 (project201) suffered heavy damage and retreated (never repaired according some western sources, but indeed she was repaired and returned in action years late), also two patrol boats (Shangai-II class) suffered damage and two small gunboats (Chong-Jin class) suffered light damages.
Photo of South Korean PKM-325 ramming a Shangai-II patrol boat.
South Korean sources claim Korean People’s Navy suffered heavy casualties: up to 100, including 12,17,20 or 30 killed in action (according different sources) in addition to 70 wounded.
These casualties remain unproved and the higher toll is less likely.
South Koreans suffered light damages on the corvette ROKS Cheonan, the patrol boat PKM-325 and four small crafts. Sources disagree on casualties (7, 9 or 11 wounded, probably due including light ones). Korean People’s Navy on their side claimed to have hit at least 10 enemy vessels.
Both sides claimed victory, western analysts tends to give victory to South Korea (indeed the KPN lost a vessel inflicting little damage).
SO-1 class n°682 during the battle. Note: ship have a different 100mm main gun, while most of the ship of the class have 85mm in different "tank-shaped" turret

22 December 2001
Battle of Amami-Oshima.
Japanese attacked a spy-ship that was operating close to Amami-Oshima, in the ring of Japanese Ryūkyū islands in the Chinese Sea.
The Japanese patrol ships (Japanese Coast Guard vessels) Amami, Kirishima, Inasa e Mizuki attacked and sunk the smaller and less armed spy-ship n°3705 Zhangyu .
Despite the disadvantages, the ship made resistance and caused damage to the Amami and wounding 3 sailors (also anti-tank RPG-7 were used), other light damages due hits occurred on Kirishima and Inasa. Korean People’s Navy crew of 15 died, wreck was later raised and inspected. DPRK press sources denied the participation of a Navy’s vessel, but visual evidence is unconfutable.

29 June 2002
Second Battle of Yeonpyeong
A pair of South Korean patrol boats (PKM-357 and PKM-358 of Chamsuri class) clashed on the contested waters with a pair of Korean People’s Navy patrol boats (n°388 of Chinese Type062 and n°684 of Soviet project201).
During the battle, South Korean patrol boat PKM-357 received three direct hits of 85mm from the n°684 and suffered massive damages. The South Koreans received help from two other Chamsuri (PKM-327 and PKM-358) and 2 Corvettes of Po Hang class (ROKS Cheonan and ROKS Chinhae), but the patrol boat sunk while the Korean People’s Navy retreated north.
During the battle, 6 South Korean sailors (including the commander Yoon Yeong Ha) died and 18 wounded.
South Koreans claims that n°684 received heavy damages but did not sunk. South Korean claims her crew suffered 13 killed and 25 wounded: this is actually difficult to occurs, because crew is 31.
Another South Korean source lower the deceased to 3 or 5 (supposedly including commander Kim Young Sik).
Korean People’s Navy claim to have suffered no damage on n°684 and no casualties suffered. Gunner Seo Ju Cheol of 85mm turret from n°684 received the title of Hero of the Republic.
DPRK claim victory, western analysts tends to label the result as “Inconclusive” but effectively the KPN inflicted more damages scoring a full sinking.
Wreck of PKM-357 recovered.

1 November 2004
Short inconclusive clash with no damage between 3 Korean People’s Navy patrol ships against one South Korean patrol boat.

29-30 October 2007
Piracy in Somalia
The DPRK unarmed merchant Dai Hong Dan of 6390t (cargo of sugar directed to India) was seized in Somali waters by a group of 7 pirates heavily armed who disguised as guards.
When helicopter from American destroyer USS James E. Williams made a flight over the ship, the 22 sailors took opportunity and assaulted the pirates seizing some weapons.
In the following firefight, the pirates surrendered after 2 died (1 according DPRK sources). 3 sailors suffered wounds and the American destroyer staff provided medical help.
This incident proved to be a very uncommon case of cooperation between a DPRK and an American vessel.
Photo of the cargo ship

10 November 2009
Battle of Daecheong
A group of South Korean ships including a Po Hang Corvette class and 4 Chamsuri patrol boats fought against the lone Korean People’s Navy patrol boat n°383 (of Chinese Type062).
The Chamsuri-class patrol boat PKM-325 was lightly damaged (15 bullet hits), and South Korean claimed that n°383 was heavily damaged. Other South Korean evaluation suggest only moderate damage. South Korean sources claims up to 10 sailors killed, but other more conservative sources claim only 1 dead and 3 wounded. Korean People’s Navy claim no casualties or damage.
Despite some claims, the North Korean patrol boat was not armed with 85mm, but only 37mm and 25mm: while South Korean sources claimed victory, other local sources criticized how their Navy missed the opportunity to sink n°383 and failed to do this despite clear advantage in numbers and firepower. Western analysts valuate the battle as disputed result, but effectively the KPN single vessel survived the engagement despite enemy superiority.
Photo of sister-ship n°384.

26 March 2010
Sinking of Cheonan
South Korean corvettes ROKS Sokcho and ROKS Cheonan were on patrol near the Baengnyeong Island when suddenly the ROKS Cheonan sunk. 49 crewmembers died, 58 rescued.
Other casualties occurred during the rescue operations: one diver drowned, and other 9 died when a small rescue boat sunk due accidental collision.
Wreck of corvette was raised for inspection. Cause of sinking are heavily disputed: South Korea and western source identify a ”Yono class” coastal submarine as the attacker that torpedoed and sunk the corvette.
Remains of torpedo were found. Russian, Chinese and DPRK sources dispute this, claiming stating as reason for the sinking a mine, an accident or even suggesting an accidental sinking caused by collision with an American submarine (South Korean Navy was involved in exercises).
According South Korean sources, four crewmembers of the submarine received the title of Hero of the Republic. The sinking made western analysts re-consider the efficacy of Korean People’s Navy light and midget submarine nearby coasts for harassing attacks, also it would be the third ever successful submarine attack made since the WW2 (after two other episodes occurred during the Indo-Pakistani war and the Falkland War).
Aft section of the Cheonan being raised.
Post 13 Dec 2016, 17:38
Page re-worked. Future updates, fix and correction and more pics.

For the readers: comments, questions, suggestions or grammar corrections are extremely welcome! Thanks ^^
Post 06 May 2017, 11:00
UPDATE: with events and seizures during '60s and '80s years.
Post 07 Sep 2018, 17:24
* Inserted known entries and refined details of all naval clashes occurred during Korean War confirmed by Soviet source (NOTE: almost everything match with German western source, and gives more details)
* One incident (29/June/1950) ending with the loss of a South Korean vessel due friendly fire according western source, it is fully described as a North Korean success by Soviet/Russian sources.
* Detailed the notorious Battle of Jumunjin: Soviet/Russian sources confirm all the western claimed losses, but with some difference on the course of action.
* Inserted all the North Korean naval losses of wooden small crafts confirmed by Soviet/Russian sources to be used as military transports.
* Absolute denial of Western rumor concerning Soviet submarine operations in Korean War
* Inserted two episodes of Soviet vessels damaged: one during Korean War, one after the War due deliberate North Korean attack
* Refined the Pueblo Incident: serial number of all North Korean units involved is known.
* Inserted other Cold War minor clashes between North and South Korea
* Inserted a failed spec-op naval operation with frogmen by South Korea in 1968
Post 29 Dec 2018, 18:24
* Added a proper introduction
* Fixed all naval naming convention ("ROKS" for South Korean vessels: no naval prefix for Korean People's Navy vessels, but like China, theorically the shortened term "KPN" could be used as adjective).
* Out of news of South Korean naval infiltrations in DPRK (admitted in last years by SK press), incidents of alleged south korean "fishing boats" in '60s should are placed in doubt, being more likely infiltration crafts
* Added 1 extra loss for a Korean Peoples Navy infiltration craft on 24/Apr/1986

* Inserted exact day/month of the three South Korean ships defecting to North before the 1950
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