The United States' role in the Vietnam War ended with the

1973

Explanation:

25 free points woah i'm never gonna go to the next rank if i just points *drops like myself esteem*

(i can't select because there is no options but, i will answer) using evidence effectively. most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. the best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.