Students and teachers at universities held to explain why they opposed the war, while many protesters focused on what they thought was an unfair . Most of the soldiers were youths.

1. Teach ins (informal discussion)

2. Draft System

3. College

Explanation:

From the Veitnam War note or text

Here is the full excerpts about how the Americans reacted or protested against the participation of Vietnam war during the period.

Students and teachers at universities held TEACH-INS to explain why they opposed the war, while many protesters focused on what they thought was an unfair DRAFT SYSTEM . Most of the soldiers were COLLEGE youths

executive, (president and about 5,000,000 workers) legislative (senate and house of representatives) and judicial (supreme court and lower courts)

explanation:

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939