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Which countries sent troops to fight alongside South Vietnam and the United States?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Vietnam War U.S. troops wading through a marsh in the Mekong delta, South Vietnam, 1967.

In addition to the United States, several other nations contributed military forces to support the government of South Vietnam during the Vietnam War.

These countries included:

South Korea
Thailand
Australia
New Zealand

While the Southeast Asia Treaty Organization (SEATO) was established to provide collective defense against communist expansion in the region, the military contributions from these specific nations were provided on a smaller scale compared to the U.S. presence.1