How did the events of the timeline lead to the united states' involvement in vietnam?

a. the united states supported the vietnamese informe their struggle forma an independent county.

b. the japanese drew the united states into their conflict with vietnam during wwii.

c. the united states backed france info an attempt to stop the spread of communism to southeast asia.

d. the government of laos and cambodia requested assistance from the united states in breaking away from vietnam.

Why was the United States concerned about Vietnam during the 1950s?

The United States feared Communism would spread to Laos and Cambodia. **

The United States wanted to help Vietnam gain independence from France.

The United States did not want France to take control of Vietnam from the USSR.

The United States thought it would have to send troops to Dien Bien Phu.

Explanation:

explanation:

the answer is the huegonots.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.