美国退休军人办公室网站上的数据,
The U.S. military presence peaked in April 1969, with 543,000 American military personnel stationed in Vietnam. By the conclusion of the United States's involvement over 3.1 million Americans had been stationed in Vietnam. Service personnel deployed to Southeast Asia 3,403,000.
在越南老挝柬埔寨,中国共出兵为32万,南韩出兵越南40万。