Sudan, in the Dafur region.
The United 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.
UN Peacekeepers
The United States would send troops to a democratic developing country if it was threatened by a nuclear power.
Officially, only Congress can declare war. If the President sends troops to another country without a declaration of war, the president is using his executive power as Commander-in-Chief of the nation's military.
No, there are no United Nations (UN) troops stationed in the United States. The U.S. is a sovereign nation and does not require UN peacekeeping forces for domestic issues. While the UN does deploy peacekeeping missions in various conflict areas around the world, these operations do not extend to the U.S.
Ordering United states troops into a foreign country to protect American citizens.
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To fight communism. To stop a communist nation (North Vietnam) from taking over a non-communist country (SOUTH Vietnam).
China has a massive amount of troops and modern technology - it's China 7,500,000 (along with reserve troops and paramilliatry) vs U.S.A 3,400,000 (along with reserve troops and paramillitary). China is also growing their economy and still going strong.
Ordering United states troops into a foreign country to protect American citizens.
The United States withdrew troops from Somalia