Answer:
The impact of the United States joining the war was significant. The additional firepower, resources, and soldiers of the U.S. helped to tip the balance of the war in favor of the Allies. When war broke out in 1914, the United States had a policy of neutrality.
It is true also u could have just looked this up lol
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It was the age of hipster, and a new era, I would like to say a second Renaissance