The war was called French and Indian war because the French and Indians fought against the British. This should be the answer.
The main reason why the US joined the war was because multiple attack on passenger and merchant ships with submarine attacks .The final straw was when the RMS Lusitania by a German u-boat going to Liverpool England .
Below are the two events that happened after the Tiananmen Square Protests:
3. The image of the Tank Man appeared on the front pages of Chinese newspapers.
Tank Man is an unknown protester who opposed the tanks during the protest. He became a symbol for civil disobedience.
4. There were large-scale protests against the incident outside China.
Criticisms from around the world flooded China - Europe, Americas, Australia, Asia. There were also demonstrations by Chinese students in various cities outside China.