Answer:
Containing Communism
Explanation:
The US and the west wanted very few communist nations, and especially no new ones. The fear was that if the communist north took the south, that this would spread to Laos, Cambodia, Indonesia, Thailand, Burma, and even to India and Australia, at which point it could pose a serious threat to America
In 1932, America suffered greatly during the Great Depression. The President at the time, Herbert Hoover, promised many reforms and improvements that would help everyone get back onto their feet. Those promises were broken as Hoover did little to pull America out of the Depression. As a result, Hoover wasn't really well liked, during and after the depression. When the elections of 1932 came around, Hoover decided to run again, but Americans went and voted for Roosevelt, who actually did something to help during the depression.
B, the Treaty of Versailles. The other answers refer to WW2
Answer:
World War I changed the way wars were fought because of the widely known trench warfare. Because troops inside the trenches were much more protected than troops outside, it led to much more prolonged battles.