Me answer these questions with this thx.

1. US troops fought the war in the country of Vietnam. 1965-1975.

2. The US intervened twice in Lebanon. In 1958 and in 1982. 

3. WW2 ended in 1945. 5 years after WW2, the US became involved in a conflict. It was in Korea and lasted 3 years.

4. The US was in Vietnam in 1965 and Lebanon in 1958.

5. The Soviet Union was involved in a border war in 1968 with China. The Soviet Union was also involve in conflict with Czechoslovakia.