Why did the vietnam war happen even though a lot of people opposed it?

The Vietnam war was not really opposed in the beginning of the war because it was a different generation of people and those people hated communism and wanted to prevent as much as possible. There was a thing were if the U.S dint fight communism , there would be a domino affect. If china became communist and then north Korea. U.S would have less influence and would basically lose the cold war if they would fight communism. If one country becomes communist then the countries around it will follow.

Explanation:

the war in Vietnam started getting bad looks and Opposition when the war took longer than expected. its like staying in Iraq as america  on large scale war for 20 years. 2.7 million soldiers served in Vietnam war and only 192,00 soldiers served in Iraq war.  People starting hating it when it was an impossible guerrilla warfare. The only way to win it was to kill everyone and bomb everyone and building you see but this would be a war crime.

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

unbeknownst to the slave-ship captains, the daily dancing and exercise regime and vernacular dance are also derived from america's african-based slave legacy. both are african-american cuisines from the slavery era.

explanation: