Names
{{Infobox transliteration , title = Korean War , skhangul = 6·25 전쟁 or 한국 전쟁 , skhanja = 六二五戰爭 or 韓國戰爭 , skrr = Hanguk Jeonjaeng , skmr = Han'guk Chŏnjaeng , northkorea = , nkhangul = 조국해방전쟁 , nkhanja = 祖國解放戰爭 , nkrr = Joguk haebang Jeonjaeng , nkmr = Choguk haebang chǒnjaeng , northkorea2 = yes , ibox-order = ko4, ko3 In South Korea, the war is usually referred to as the "625 War" ({{Korean, hangul=6·25 전쟁, hanja=六二五戰爭, labels=no), the "625 Upheaval" ({{Korean, hangul=6·25 동란, hanja=六二五動亂, rr=yook-i-o dongnan, labels=no), or simply "625", reflecting the date of its commencement on 25 June. In North Korea, the war is officially referred to as the "Fatherland Liberation War" ({{Transliteration, ko, Choguk haebang chǒnjaeng) or alternatively the ''" Chosǒn'' orean''War"'' ({{Korean, hangul=조선전쟁, mr=Chosǒn chǒnjaeng, context=north, labels=no). In mainland China, the segment of the war after the intervention of theBackground
Imperial Japanese rule (1910–1945)
{{Main, Korea under Japanese rule Imperial Japan severely diminished the influence ofKorea divided (1945–1949)
{{Main, Division of Korea At the Tehran Conference in November 1943 and the Yalta Conference in February 1945, the Soviet Union promised to join itsChinese Civil War (1945–1949)
{{Main, Chinese Civil War, Chinese Communist Revolution With the end of the war with Japan, the Chinese Civil War resumed in earnest between the Communists and Nationalists. While the Communists were struggling for supremacy in Manchuria, they were supported by the North Korean government withCommunist insurgency in South Korea (1948–1950)
By 1948, a large-scale North Korea-backed insurgency had broken out in the southern half of the peninsula. This was exacerbated by the ongoing undeclared border war between the Koreas, which saw division-level engagements and thousands of deaths on both sides. The ROK in this time was almost entirely trained and focused on counterinsurgency, rather than conventional warfare. They were equipped and advised by a force of a few hundred American officers, who were largely successful in helping the ROKA to subdue guerrillas and hold its own againstPrelude to war (1950)
By 1949, South Korean and US military actions had reduced the active number of indigenous communist guerrillas in the South from 5,000 to 1,000. However, Kim Il-sung believed that widespread uprisings had weakened the South Korean military and that a North Korean invasion would be welcomed by much of the South Korean population. Kim began seeking Stalin's support for an invasion in March 1949, traveling to Moscow to attempt to persuade him.{{Sfn, Weathersby, 2002, pp=3–4 Stalin initially did not think the time was right for a war in Korea. PLA forces were still embroiled in the Chinese Civil War, while US forces remained stationed in South Korea.{{Sfn, Weathersby, 2002, p=3 By spring 1950, he believed that the strategic situation had changed: PLA forces under Mao Zedong had secured final victory in China, US forces had withdrawn from Korea, and the Soviets had detonated their first nuclear bomb, breaking the US atomic monopoly. As the US had not directly intervened to stop the communist victory in China, Stalin calculated that they would be even less willing to fight in Korea, which had much less strategic significance. The Soviets had also cracked the codes used by the US to communicate with their embassy in Moscow, and reading these dispatches convinced Stalin that Korea did not have the importance to the US that would warrant a nuclear confrontation.{{Sfn, Weathersby, 2002, pp=9, 10 Stalin began a more aggressive strategy in Asia based on these developments, including promising economic and military aid to China through the Sino-Soviet Treaty of Friendship, Alliance, and Mutual Assistance.{{Sfn, Weathersby, 2002, p=11 In April 1950, Stalin gave Kim permission to attack the government in the South under the condition that Mao would agree to send reinforcements if needed. For Kim, this was the fulfillment of his goal to unite Korea after its division by foreign powers. Stalin made it clear that Soviet forces would not openly engage in combat, to avoid a direct war with the US.{{Sfn, Weathersby, 2002, p=10 Kim met with Mao in May 1950. Mao was concerned the US would intervene but agreed to support the North Korean invasion. China desperately needed the economic and military aid promised by the Soviets.{{Sfn, Barnouin, Yu, 2006, pp=139–40 However, Mao sent more ethnic Korean PLA veterans to Korea and promised to move an army closer to the Korean border.{{Sfn, Weathersby, 1993, p=29 Once Mao's commitment was secured, preparations for war accelerated.{{Sfn, Weathersby, 2002, p=13 Soviet generals with extensive combat experience from the Second World War were sent to North Korea as the Soviet Advisory Group. These generals completed the plans for the attack by May.{{Sfn, Weathersby, 1993, pp=29–30 The original plans called for a skirmish to be initiated in theComparison of forces
Throughout 1949 and 1950, the Soviets continued arming North Korea. After the Communist victory in the Chinese Civil War, ethnic Korean units in the PLA were sent to North Korea.{{Sfn, Millett, 2007, p=14 Chinese involvement was extensive from the beginning, building on previous collaboration between the Chinese and Korean communists during the Chinese Civil War. In the fall of 1949, two PLA divisions composed mainly of Korean-Chinese troops (the 164th and 166th) entered North Korea, followed by smaller units throughout the rest of 1949; these troops brought with them not only their experience and training, but their weapons and other equipment, changing little but their uniforms. The reinforcement of the KPA with PLA veterans continued into 1950, with the 156th Division and several other units of the former Fourth Field Army arriving (also with their equipment) in February; the PLA 156th Division was reorganized as the KPA 7th Division. By mid-1950, between 50,000 and 70,000 former PLA troops had entered North Korea, forming a significant part of the KPA's strength on the eve of the war's beginning. Several generals, such asCourse of the war
Factors in US intervention
The Truman administration was unprepared for the invasion. Korea was not included in the strategic Asian Defense Perimeter outlined by United States Secretary of StateUnited Nations Security Council Resolutions
{{Further, List of United Nations Security Council resolutions concerning North Korea On 25 June 1950, the United Nations Security Council unanimously condemned the North Korean invasion of South Korea, with UN Security Council Resolution 82. The Soviet Union, a veto-wielding power, had boycotted the Council meetings since January 1950, protesting Taiwan's occupation of China's permanent seat in the UN Security Council.{{Sfn, Malkasian, 2001, p=16 After debating the matter, the Security Council, on 27 June 1950, published Resolution 83 recommending member states provide military assistance to the Republic of Korea. On 27 June President Truman ordered US air and sea forces to help South Korea. On 4 July the Soviet Deputy Foreign Minister accused the US of starting armed intervention on behalf of South Korea. The Soviet Union challenged the legitimacy of the war for several reasons. The ROK intelligence upon which Resolution 83 was based came from US Intelligence; North Korea was not invited as a sitting temporary member of the UN, which violated UN Charter Article 32; and the fighting was beyond the UN Charter's scope, because the initial north–south border fighting was classed as a civil war. Because the Soviet Union was boycotting the Security Council at the time, legal scholars posited that deciding upon an action of this type required the unanimous vote of all the five permanent members including the Soviet Union. Within days of the invasion, masses of ROK soldiers—of dubious loyalty to the Syngman Rhee regime—were retreating southwards orUnited States' response (July–August 1950)
The drive south and Pusan (July–September 1950)
Battle of Incheon (September 1950)
{{Main, Battle of IncheonBreakout from the Pusan Perimeter
{{Main, Pusan Perimeter offensive, UN September 1950 counteroffensive, Second Battle of Seoul On 16 September Eighth Army began its breakout from the Pusan Perimeter. ''Task Force Lynch'', 3rd Battalion, 7th Cavalry Regiment, and two 70th Tank Battalion units (Charlie Company and the Intelligence–Reconnaissance Platoon) advanced through {{Convert, 106.4, mi, order=flip, abbr=on of KPA territory to join the 7th Infantry Division at Osan on 27 September. X Corps rapidly defeated the KPA defenders around Seoul, thus threatening to trap the main KPA force in Southern Korea.{{Sfn, Stokesbury, 1990, pp=71–72 On 18 September, Stalin dispatched General H. M. Zakharov to North Korea to advise Kim Il-sung to halt his offensive around the Pusan perimeter and to redeploy his forces to defend Seoul. Chinese commanders were not briefed on North Korean troop numbers or operational plans. As the overall commander of Chinese forces, Zhou Enlai suggested that the North Koreans should attempt to eliminate the UN forces at Incheon only if they had reserves of at least 100,000 men; otherwise, he advised the North Koreans to withdraw their forces north.{{Sfn, Barnouin, Yu, 2006, p=143 On 25 September, Seoul was recaptured by UN forces. US air raids caused heavy damage to the KPA, destroying most of its tanks and much of its artillery. KPA troops in the south, instead of effectively withdrawing north, rapidly disintegrated, leaving Pyongyang vulnerable.{{Sfn, Barnouin, Yu, 2006, p=143 During the general retreat only 25,000 to 30,000 KPA soldiers managed to reach the KPA lines. On 27 September, Stalin convened an emergency session of the Politburo, in which he condemned the incompetence of the KPA command and held Soviet military advisers responsible for the defeat.{{Sfn, Barnouin, Yu, 2006, p=143UN forces invade North Korea (September–October 1950)
{{Main, UN offensive into North Korea On 27 September, MacArthur received the top secret National Security Council Memorandum 81/1 from Truman reminding him that operations north of the 38th Parallel were authorized only if "at the time of such operation there was no entry into North Korea by major Soviet or Chinese Communist forces, no announcements of intended entry, nor a threat to counter our operations militarily". On 29 September MacArthur restored the government of the Republic of Korea under Syngman Rhee.{{Sfn, Barnouin, Yu, 2006, p=143 On 30 September, US Defense Secretary George Marshall sent an eyes-only message to MacArthur: "We want you to feel unhampered tactically and strategically to proceed north of the 38th parallel." During October, the South Korean policeChina intervenes (October–December 1950)
{{stack, On 30 June 1950, five days after the outbreak of the war, Zhou Enlai, premier of the PRC and vice-chairman of the Central Military Committee of the CCP (CMCC), decided to send a group of Chinese military intelligence personnel to North Korea to establish better communications with Kim II-Sung as well as to collect first-hand materials on the fighting. One week later, on 7 July, Zhou and Mao chaired a conference discussing military preparations for the Korean Conflict. Another conference took place on 10 July. Here it was decided that the Thirteenth Army Corps under the Fourth Field Army of theFighting around the 38th Parallel (January–June 1951)
A ceasefire presented by the UN to the PRC shortly after theStalemate (July 1951 – July 1953)
For the remainder of the war, the UN and the PVA/KPA fought but exchanged little territory, as the stalemate held. Large-scale bombing of North Korea continued, and protracted armistice negotiations began on 10 July 1951 at Kaesong, an ancient capital of Korea located in PVA/KPA held territory.{{Sfn, Stokesbury, 1990, pp=145, 175–77 On the Chinese side, Zhou Enlai directed peace talks, andArmistice (July 1953 – November 1954)
{{Main, Korean Armistice AgreementDivision of Korea (1954–present)
{{See also, Korean Demilitarized ZoneCharacteristics
Casualties
Approximately 3 million people died in the Korean War, the majority of whom were civilians, making it perhaps the deadliest conflict of the Cold War-era.{{Cite book , last=Cumings , first=Bruce , title=The Korean War: A History , publisher=Military
Civilian
According to the South Korean Ministry of National Defense, there were over three-quarters of a million confirmed violent civilians deaths during the war, another million civilians were pronounced missing, and millions more ended up as refugees. In South Korea, some 373,500 civilians were killed, more than 225,600 wounded, and over 387,740 were listed as missing. During the first communist occupation of Seoul alone, the KPA massacred 128,936 civilians and deported another 84,523 to North Korea. On the other side of the border, some 1,594,000 North Koreans were reported as casualties including 406,000 civilians reported as killed, and 680,000 missing. Over 1.5 million North Koreans fled to the South during the war.US unpreparedness for war
In a postwar analysis of the unpreparedness of US Army forces deployed to Korea during the summer and fall of 1950, Army Major GeneralArmored warfare
The initial assault by KPA forces was aided by the use of Soviet T-34-85 tanks.{{Sfn, Stokesbury, 1990, pp=14, 43 A KPA tank corps equipped with about 120 T-34s spearheaded the invasion. These drove against the ROK with few anti-tank weapons adequate to deal with the T-34s.{{Sfn, Stokesbury, 1990, p=39 Additional Soviet armor was added as the offensive progressed.{{Sfn, Perrett, 1987, pp=134–35 The KPA tanks had a good deal of early successes against ROK infantry, Task Force Smith and the USNaval warfare
{{Further, List of US Navy ships sunk or damaged in action during the Korean conflict {{Naval engagements of the Korean WarAerial warfare
{{Further, MiG Alley, USAF Units and Aircraft of the Korean War, Korean People's Air Force The war was the first in whichBombing of North Korea
{{Main, Bombing of North Korea The initial bombing attack on North Korea was approved on the fourth day of the war, 29 June 1950, by General Douglas MacArthur immediately upon request by the commanding general of the Far East Air Forces (FEAF), George E. Stratemeyer.{{Cite journal , last=Kim , first=Taewoo , date=2012 , title=Limited War, Unlimited Targets: U.S. Air Force Bombing of North Korea during the Korean War, 1950–1953 , journal=Critical Asian Studies , volume=44 , issue=3 , pages=467–492 , doi=10.1080/14672715.2012.711980 , s2cid=142704845. Major bombing began in late July. U.S. airpower conducted 7,000 close support and interdiction airstrikes that month, which helped slow the North Korean rate of advance to {{Convert, 2, mi, km, 0, order=flip, abbr=on a day. On 12 August 1950, the USAF dropped 625 tons of bombs on North Korea; two weeks later, the daily tonnage increased to some 800 tons. From June through October, official US policy was to pursue precision bombing aimed at communication centers (railroad stations, marshaling yards, main yards, and railways) and industrial facilities deemed vital to war-making capacity. The policy was the result of debates after World War II, in which US policy rejected the mass civilian bombings that had been conducted in the later stages of World War II as unproductive and immoral. In early July, GeneralUS threat of atomic warfare
War crimes
Civilian deaths and massacres
{{Further, Bodo League massacre, Seoul National University Hospital massacre, No Gun Ri Massacre, Sinchon Massacre, Ganghwa massacre, Sancheong-Hamyang massacre, Geochang massacrePrisoners of War (POWs)
{{See also, Korean War POWs detained in North Korea, Hill 303 massacre, List of American and British defectors in the Korean WarChinese POWs
At=UN Command POWs
= The United States reported that North Korea mistreated prisoners of war: soldiers were beaten, starved, put to unfree labour, forced labor, death march, marched to death, and summary execution, summarily executed. The KPA killed POWs at the battles for Hill 312, Hill 303, the Pusan Perimeter, Daejeon and UN offensive into North Korea#KPA massacre at Sunchon, Sunchon; these massacres were discovered afterwards by the UN forces. Later, a US Congress war crimes investigation, the United States Senate Subcommittee on Korean War Atrocities of the Permanent Subcommittee of the Investigations of the Committee on Government Operations, reported that "two-thirds of all American prisoners of war in Korea died as a result of war crimes". Although the Chinese rarely executed prisoners like their North Korean counterparts, mass starvation and diseases swept through the Chinese-run POW camps during the winter of 1950–51. About 43 percent of US POWs died during this period. The Chinese defended their actions by stating that all Chinese soldiers during this period were suffering mass starvation and diseases due to logistical difficulties. The UN POWs said that most of the Chinese camps were located near the easily supplied Sino-Korean border and that the Chinese withheld food to force the prisoners to accept the communism indoctrination programs. According to Chinese reports, over a thousand US POWs died by the end of June 1951, while a dozen British POWs died, and all Turkish POW survived. According to Hastings, wounded US POWs died for lack of medical attention and were fed a diet of corn and millet "devoid of vegetables, almost barren of proteins, minerals, or vitamins" with only 1/3 the calories of their usual diet. Especially in early 1951, thousands of prisoners lost the will to live and "declined to eat the mess of sorghum and rice they were provided".Starvation
{{See also, National Defense Corps Incident In December 1950, the South Korean National Defense Corps was founded; the soldiers were 406,000 drafted citizens. In the winter of 1951, 50,000 to 90,000 South Korean National Defense Corps soldiers starved to death while marching southward under the PVA offensive when their commanding officers embezzled funds earmarked for their food. This event is called the National Defense Corps Incident. Although his political allies certainly profited from corruption, it remains controversial if Syngman Rhee was personally involved in or benefited from the corruption.{{Cite book , last=Terence Roehrig , url=https://books.google.com/books?id=zfQggLWwyi4C&pg=PA139 , title=Prosecution of Former Military Leaders in Newly Democratic Nations: The Cases of Argentina, Greece, and South Korea , publisher=McFarland & Company , date=2001 , isbn=978-0786410910 , page=139 , archive-url=https://web.archive.org/web/20150921221320/https://books.google.com/books?id=zfQggLWwyi4C&pg=PA139&lpg=PA139 , archive-date=21 September 2015 , url-status=liveRecreation
{{Further, United Service OrganizationsAftermath
{{Main, Aftermath of the Korean War Postwar recovery was different in the two Koreas. South Korea, which started from a far lower industrial base than North Korea (the latter contained 80% of Korea's heavy industry in 1945), stagnated in the first postwar decade. In 1953, South Korea and the United States signed a Mutual Defense Treaty Between the United States and the Republic of Korea, Mutual Defense Treaty. In 1960, the April Revolution occurred and students joined an anti-Syngman Rhee demonstration; 142 were killed by police; in consequence Syngman Rhee resigned and left for exile in the United States.See also
{{Div col, colwidth=20em * 1st Commonwealth Division * Australia in the Korean War * Canada in the Korean War * Colombian Battalion * Joint Advisory Commission, Korea * Korean DMZ Conflict (1966–1969) * Korean reunification * Korean War in popular culture * List of books about the Korean War * List of Korean War Medal of Honor recipients * List of Korean War weapons * List of military equipment used in the Korean War * List of wars and anthropogenic disasters by death toll * MASH (film), ''MASH'' – film * M*A*S*H (TV series), ''M*A*S*H'' – TV series * New Zealand in the Korean War * North Korea in the Korean War * Operation Big Switch * Operation Little Switch * Operation Moolah * Partisans in Korean War, Partisan Movement * Philippine Expeditionary Forces to Korea * Pyongyang Sally * Soviet Union in the Korean War * Transfer of People's Volunteer Army soldiers' remains from South Korea to China * UNCMAC – the UN Command Military Armistice Commission operating from 1953 to the present * UNCURK – the 1951 UN Commission for the Unification and Rehabilitation of Korea * UNTCOK – the 1950 United Nations Temporary Commission on Korea {{Div col endWar memorials
* Korean War Memorial Wall (Canada), Korean War Memorial Wall,{{Ref, 25, map Brampton, Ontario * Korean War Veterans Memorial, Washington, D.C. * Memorial of the War to Resist US Aggression and Aid Korea, Dandong, Liaoning, China * National War Memorial (New Zealand) * Philadelphia Korean War Memorial * United Nations Memorial Cemetery, Busan, Republic of Korea * Victorious War Museum, Pyongyang, North Korea * War Memorial of Korea Yongsan-dong, Seoul, Yongsan-dong, Yongsan-gu, Seoul, South KoreaNotes
{{NotelistReferences
Citations
{{Reflist, refs = {{Cite web , date=11 April 2013 , title=Českoslovenští lékaři stáli v korejské válce na straně KLDR. Jejich mise stále vyvolává otazníky , url=http://www.rozhlas.cz/zpravy/historie/_zprava/ceskoslovensti-lekari-stali-v-korejske-valce-na-strane-kldr-jejich-mise-stale-vyvolava-otazniky--1198828 , url-status=live , archive-url=https://web.archive.org/web/20161002041301/http://www.rozhlas.cz/zpravy/historie/_zprava/ceskoslovensti-lekari-stali-v-korejske-valce-na-strane-kldr-jejich-mise-stale-vyvolava-otazniky--1198828 , archive-date=2 October 2016 , access-date=25 July 2016 , publisher=Czech Radio , language=cs {{Cite web , title=Casualties of Korean War , url=http://www.imhc.mil.kr/imhcroot/data/korea_view.jsp?seq=4&page=1 , archive-url=https://web.archive.org/web/20130120040603/http://www.imhc.mil.kr/imhcroot/data/korea_view.jsp?seq=4&page=1 , archive-date=20 January 2013 , access-date=14 February 2007 , publisher=Ministry of National Defense of Republic of Korea , language=ko {{Cite web , last=Hickey , first=Michael , title=The Korean War: An Overview , url=https://www.bbc.co.uk/history/worldwars/coldwar/korea_hickey_04.shtml , url-status=live , archive-url=https://web.archive.org/web/20090205152624/http://www.bbc.co.uk/history/worldwars/coldwar/korea_hickey_04.shtml , archive-date=5 February 2009 , access-date=31 December 2011 {{Cite book , last=Li , first=Xiaobing , url=https://archive.org/details/historymodernchi00lixi , title=A History of the Modern Chinese Army , publisher=University Press of Kentucky , date=2007 , isbn=978-0813124384 , location=Lexington, KY , pagBibliography
{{See also, Bibliography of Stalinism and the Soviet Union, Bibliography of the Post Stalinist Soviet Union {{Refbegin, 30em * {{Cite book , last=Cumings, B , title=The Korean War: A history , date=2011 , publisher=Modern Library , location=New York * {{Cite book , last=Kraus , first=Daniel , title=The Korean War , date=2013 , publisher=Booklist * {{Cite book , last=Warner, G. , title=The Korean War , date=1980 , publisher=International Affairs *{{source attribution, {{Cite book , last=Appleman , first=Roy E , url=http://www.history.army.mil/books/korea/20-2-1/toc.htm , title=South to the Naktong, North to the Yalu , publisher=United States Army Center of Military History , date=1998 , isbn=978-0160019180 , pages=3, 15, 381, 545, 771, 719 , access-date=14 July 2010 , archive-url=https://web.archive.org/web/20140207235336/http://www.history.army.mil/books/korea/20-2-1/toc.htm , archive-date=7 February 2014 , url-status=dead , orig-year=1961 * {{Cite book , last1=Barnouin , first1=Barbara , title=Zhou Enlai: A Political Life , last2=Yu , first2=Changgeng , publisher=Chinese University Press , date=2006 , isbn=978-9629962807 , location=Hong Kong * {{Cite book , last=Becker , first=Jasper , url=https://archive.org/details/rogueregimekimjo00beck , title=Rogue Regime: Kim Jong Il and the Looming Threat of North Korea , publisher=Oxford University Press , date=2005 , isbn=978-0195170443 , location=New York * {{Cite book , last=Beschloss , first=Michael , url=https://books.google.com/books?id=TSxyDwAAQBAJ , title=Presidents of War: The Epic Story, from 1807 to Modern Times , publisher=Crown , date=2018 , isbn=978-0-307-40960-7 , location=New York * {{Cite book , last=Blair , first=Clay , title=The Forgotten War: America in Korea, 1950–1953 , publisher=Naval Institute Press , date=2003 , author-link=Clay Blair * {{Cite book , last=Chen , first=Jian , title=China's Road to the Korean War: The Making of the Sino-American Confrontation , publisher=Columbia University Press , date=1994 , isbn=978-0231100250 , location=New York * {{Cite book , last=Clodfelter , first=Micheal , title=A Statistical History of the Korean War: 1950-1953 , publisher=Merriam Press , date=1989 , location=Bennington, Vermont * {{Cite book , last=Cumings , first=Bruce , title=Korea's Place in the Sun : A Modern History , publisher=W. W. Norton & Company , date=2005 , isbn=978-0393327021 , location=New York , author-link=Bruce Cumings * {{Cite book , last=Cumings , first=Bruce , title=Origins of the Korean War , publisher=Princeton University Press , date=1981 , isbn=978-8976966124 , chapter=3, 4 , author-link=Bruce Cumings * {{Cite book , last1=Dear , first1=Ian , url=https://archive.org/details/oxfordcompaniont00dear/page/516 , title=The Oxford Companion to World War II , last2=Foot , first2=M.R.D. , publisher= Oxford University Press , date=1995 , isbn=978-0198662259 , location=Oxford, NY , pagExternal links
{{Sister project links, Korean War, voy=Korean War * Records oHistorical
Media
Organizations
Memorials