Question

why there was involvement of us in Vietnamese war​

Answer 1

Answer  The Domino Theory held that communism would spread if Vietnam became communist.

Anti-communist sentiment at home influenced foreign policy views.

The Gulf of Tonkin incident appeared to be a provocation for war.

As war continued, desire to find an "honorable peace" was motivation to keep troops in Vietnam.

Answer 2

US attacked Vietnam because

1 - to show their power- as it is the most powerful country
2-domino effect - it was afraid of the growth of communist government
3- repay the help of France - France had helped 13 American colonies to gain independence during the American independence war