As of May 2025, about * U.S. military personnel were stationed in South Korea. The U.S. Army was the largest branch with about * personnel, followed by the U.S. Air Force with about personnel. The U.S. military forces were first stationed in South Korea on September 8, 1945 to disarm Japanese troops following Japan's surrender in World War II. Today, South Korea hosts one of the largest numbers of active U.S. troops deployed in any country outside the United States.
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Yonhap. (May 23, 2025). Number of the United States military personnel in South Korea in May 2025, by service branch [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1617664/south-korea-number-of-us-troops-by-branch/
Yonhap. "Number of the United States military personnel in South Korea in May 2025, by service branch." Chart. May 23, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1617664/south-korea-number-of-us-troops-by-branch/
Yonhap. (2025). Number of the United States military personnel in South Korea in May 2025, by service branch. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1617664/south-korea-number-of-us-troops-by-branch/
Yonhap. "Number of The United States Military Personnel in South Korea in May 2025, by Service Branch." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 23 May 2025, /statistics/1617664/south-korea-number-of-us-troops-by-branch/
Yonhap, Number of the United States military personnel in South Korea in May 2025, by service branch ÌÇÐÄÆƽâ°æ, /statistics/1617664/south-korea-number-of-us-troops-by-branch/ (last visited July 31, 2026)
Number of the United States military personnel in South Korea in May 2025, by service branch [Graph], Yonhap, May 23, 2025. [Online]. Available: /statistics/1617664/south-korea-number-of-us-troops-by-branch/
