| Korean War | |||||||||
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| Part of the Cold War and the Korean conflict | |||||||||
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Total: Together: 3,042,000 | ||||||||
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The Korean War (Korean: 한국전쟁, Russian: Корейская Война, Chinese: 朝鲜战争) took place between 25 June 1950 and 27 July 1953. It was a civil war fought between the Republic of Korea (South Korea), and the Democratic People's Republic of Korea (North Korea). South Korea was supported by the militaries of several countries of the United Nations, commanded by the United States. North Korea was supported by the People's Republic of China and the Soviet Union. The war began at 4:30 a.m. on 25 June 1950. The fighting stopped on 27 July 1953. More than two million Koreans had been killed, mostly in the North.
Both sides blame each other for starting the war. The North, led by the communist Kim Il-Sung, was helped mostly by China, led by Mao Zedong, and the Soviet Union, led by Joseph Stalin. There was medical support from East Germany, led by Walter Ulbricht); Hungary, led by Mátyás Rákosi; Romania, led by Gheorghe Gheorghiu-Dej; Czechoslovakia, led by Klement Gottwald; Poland, led by Bolesław Bierut; and Bulgaria. Other support came from Mongolia, led by Khorloogiin Choibalsan
The South, led by the nationalist Syngman Rhee, was helped by many countries in the United Nations, especially the United States. British troops were on the ground in smaller numbers. The U.S. forces included detachments from its Air Force and Navy.
The war ended on 27 July, 1953. The United States keeps troops in South Korea in case North Korea ever invades again. Both Koreas are divided by the Korean Demilitarized Zone, which crosses the 38th parallel.
In 1910, fifteen years after the First Sino-Japanese War, Japan annexed Korea and was still ruling when World War II ended in 1945. After Japan had surrendered, the United States and the Soviet Union agreed to split Korea into two occupation zones for a short time, with the Soviets occupying the north and the Americans occupying the south.
At the Moscow Conference of the Council of Foreign Ministers in December 1945, the Americans and the Soviets agreed on Korea having a provisional government, which would not last long. That became difficult because of the rise of the Cold War.
The Cold War was an important cause in the Korean War. Relations between the two occupying powers were already bad, but when China became communist in October 1949, US President Harry Truman was very worried that other countries around China would go communist as well, such as Japan. The US Army was a twelfth the size that it had been of five years earlier.
Stalin had recently lost a Cold War dispute over the Berlin Blockade and the subsequent airlift. Both powers argued mainly over fair border lines and the spread of communism.


25 June 1950
July 1950
| Country | Positive | Negative |
|---|---|---|
| United States | The expansion of communism is stopped from entering South Korea. Greece and Turkey join NATO. The Truman Doctrine is upheld. | Found by other countries to be far too aggressive, which makes them nervous. |
| UN | Countries united and militarily tested for first time | Wins only by violence, not peace talks. |
| Both Koreas | North Korea stays communist and gets treaty with China. South Korea stays capitalist. | Many people die. Much property is wrecked. No reunification occurs. |
| People's Republic of China | A foreign war unites the country and improves its rulers' prestige. | Reputation damaged, political setback. Not allowed on UN Security Council until 1971. |
| Soviet Union | The expansion of capitalism is stopped from entering North Korea. The Soviet Air Force is tested against that of United States. | Loss of money, loses China's trust |
The popular television show M*A*S*H, about American doctors serving in the Korean War, lasted longer than the fighting.
Total Strength 602,902 troops
Republic of Korea – 590,911
Colombia – 1,068
United States – 302,483
Belgium – 900
United Kingdom – 14,198
South Africa – 826
Canada – 6,146
Netherlands – 819
Turkey – 5,453
Luxembourg – 44
Australia – 2,282
Philippines – 1,496
New Zealand – 1,385
Thailand – 1,204[clarification needed]
Ethiopia – 1,271
Greece – 1,263
France – 1,119
A peak strength of 14,198 British troops was reached in 1952, with over 40,000 total serving in Korea.
When war came to Korea in June 1950, Britain was second only to the United States in the contribution it made to the UN effort in Korea. 87,000 British troops took part in the Korean conflict, and over 1,000 British servicemen lost their lives[permanent dead link]
Other countries to furnish combat troops, with their peak strength, were: United States (302,483), United Kingdom (14,198), Canada (6,146), Turkey (5,455), Australia (2,282), Thailand (2,274), Philippines (1,496), New Zealand (1,389), France (1,185), Colombia (1,068), Ethiopia (1,271), Greece (1,263), Belgium (900), Netherlands (819), Republic of South Africa (826), Luxembourg (52)
Peak Canadian Army strength in Korea was 8,123 all ranks.
NKPA strength peaked in October 1952 at 266,600 men in eighteen divisions and six independent brigades.
Soviet involvement in the Korean War was on a large scale. During the war, 72,000 Soviet troops (among them 5,000 pilots) served along the Yalu River in Manchuria. At least 12 air divisions rotated through. A peak strength of 26,000 men was reached in 1952.[permanent dead link]
Various encyclopedias state that the countries involved in the three-year conflict suffered a total of more than 4 million casualties, of which at least 2 million were civilians—a higher percentage than in World War II or Vietnam. A total of 36,940 Americans lost their lives in the Korean theater; of these, 33,665 were killed in action, while 3,275 died there of non-hostile causes. Some 92,134 Americans were wounded in action, and decades later, 8,176 were still reported as missing. South Korea sustained 1,312,836 casualties, including 415,004 dead. Casualties among other UN allies totaled 16,532, including 3,094 dead. Estimated North Korean casualties numbered 2 million, including about one million civilians and 520,000 soldiers. An estimated 900,000 Chinese soldiers lost their lives in combat.
For the Korean War the only hard statistic is that of American military deaths, which included 33,629 battle deaths and 20,617 who died of other causes. The North Korean and Chinese Communists never published statistics of their casualties. The number of South Korean military deaths has been given as in excess of 400,000; the South Korean Ministry of Defense puts the number of killed and missing at 281,257. Estimates of communist troops killed are about one-half million. The total number of Korean civilians who died in the fighting, which left almost every major city in North and South Korea in ruins, has been estimated at between 2 and 3 million. This adds up to almost 1 million military deaths and a possible 2.5 million civilians who were killed or died as a result of this extremely destructive conflict. The proportion of civilians killed in the major wars of this century (and not only in the major ones) has thus risen steadily. It reached about 42 percent in World War II and may have gone as high as 70 percent in the Korean War. ... we find that the ratio of civilian to military deaths [in Vietnam] is not substantially different from that of World War II and is well below that of the Korean War.