-Effects of WW1 on America Fact 1: The impact of the Great War on the United States saw political, economic and social changes. The United States emerged from the war as a world military and industrial leader. ... Effects of WW1 on America Fact 3: Production and efficiency in industries and factories had increased.
-WWI was largely a stalemate until the US entered the war. Its large population and many resources tipped the balance and allowed the Allied Powers to win the war soon after the US entered. ... The American troops were fresh because we didn't join the war until April 1917. Our rested troops were a big asset for the Allies.
-The effect of WWI on the US economy was considerable. ... So the short term effect (I am defining short term effect as within one decade) was that the US economy grew a large amount due to their involvement in WWI. The long term effect was that US involvement in the war lead directly to the Great Depression and WWII.
