usa
The Communist invasion of South Korea.North Korea's invasion of South Korea
Harry Truman sent troops to Korea in 1950.
Several. Australia, New Zealand, The Philippines, Thailand, and the Republic of Korea (South Korea) sent troops to Vietnam.
When 75,000 troops from communist North Korea invaded South Korea, the United States sent troops to help South Korea in a war that lasted three years.
North Korea. Also, the American troops spent a lot of time fighting the Chinese since China sent in troops to support North Korea, just as the U.S. sent in troops to support South Korea.
They were sent into South Korea at the request of the United Nations to protect Sout Korea and to eject the invading North Koreans.
See the list on the website: Korean War
China sent troops to help North Korea. The UN states
The Soviet Union occupied the North and the United States had the South. North Korea became a communist nation. And South Korea became a democratic nation. In 1950, North Korean troops invaded South Korea. The United Nations sent troops from the United States to help defend South Korea. Chinese troops joined North Korea.
In 1950, the United States sent troops to help South Korea in response to the invasion by North Korean forces. This military intervention was part of a broader effort to support South Korea under the auspices of the United Nations, which authorized the use of force to repel the North Korean aggression. Other countries, including the United Kingdom, Canada, and Australia, also contributed troops to the United Nations Command supporting South Korea during the Korean War.
UN member states
China sent troops to help North Korea. The UN states