Which aspect of the vietnam war would most likely suggest that the conflict was a proxy war?

a. the war ultimately became extremely unpopular with american citizens.
b. the united states sent hundreds of thousands of u. s. soldiers to fight in the war.
c. the north korean communist forces succeeded in conquering the entire country.
d. the conflict began in the 1950s and lasted nearly 20 years.

The answer to the question above is option B: The United States sent hundreds of thousands of U.S. soldiers to fight in the war. When we say proxy war, this is the kind of war that is being initiated by a bigger power but never itself become directly involved in the war. The best example for this is the Vietnam War. The United States only sent their troops for the fight, but actually, those that are mainly involved are the Northern Communist Vietnam and the Southern Capitalist Vietnam only. The main purpose of the United States here is to gain power in the region and territory.