- Cumings, Bruce (2011). The Korean War: A History. Modern Library. p. 35. ISBN 9780812978964.
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.