Why did the united states rebuild Germany after world war 2

They wanted to help Europe and their allies recover from the War. In order to help Europe recover from the war, the United States came up with the Marshall Plan. It is named after Secretary of State George Marshall. The Marshall Plan offered help and finances to European countries in order to recover from World War II.

Explanation:

The reconstruction of Germany after World War II was a long process. Germany had suffered heavy losses during the war, both in lives and industrial power. ... At the Potsdam Conference, the victorious Allies ceded roughly 25% of Germany's pre-Anschluss territory to Poland and the Soviet Union.

which time period is this? or is this story fictional, i'm going to need more info to answer this question

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)