On what day did China become communist?

In what year did North Korea invade the south?

By what month in 1950 had the North pushed the South back to small positions on the south coast?

When was the North's invasion declared illegal by the UN, and that the UN should provide support to South Korea?

The UN forces helped push the North back to the Chinese border by what month?

After the Chinese joined on the side of the North, when did the two forces reach a stalemate?

(month and year)

In what year was a ceasefire declared in Korea?

When did France pull out of Vietnam after the success of communist backed separatists? (year)

After France pulled out of Vietnam, where was the country split into north and south?

When did the US begin actively supporting the Southern Vietnamese government?