United Nations Military Forces on September 1, 1950

Losses in the American divisions fighting in Korea had been so great in the first two months that special steps had to be taken to obtain replacements. On 19 August to help meet this demand, Eighth Army Rear in Japan ordered what it called "Operation Flushout." This required that all units in Japan reassign part of their troops as replacements for use in Korea. By 6 September, 229 officers and 2,201 enlisted men had been reassigned to Korea under this plan. Altogether, during August, 11,115 officer and enlisted replacements arrived in Korea from Japan and the United States. The United Nations Command had a supported strength in Korea on 1 September 1950 of nearly 180,000 men, according to figures available at the time. The major organizations reported their personnel strengths as follows:

Unit Forces
U.S. Eighth Army 78,762
2d Infantry Division US Army 17,498
24th Infantry Division US Army 14,739
25th Infantry Division US Army 15,007
1st Cavalry Division US Army 14,703
Unit Forces
1st Provisional Marine Brigade US Marines 4,290
U.S. Fifth Air Force 3,603
British 27th Infantry Brigade 1,578
Republic of Korea Army 91,696
Total 179,929
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