Answer:
The United States entered World War I in April 1917, after years of attempting to remain neutral. Once the U.S. was involved in the conflict, it played a significant role in helping to defeat the Central Powers, particularly through its economic and military contributions. Some of the major events of the war after the U.S. entered include:
1. American Expeditionary Forces: The U.S. sent troops to Europe as part of the American Expeditionary Forces (AEF), which were commanded by General John J. Pershing. The AEF fought in several major battles, including the Meuse-Argonne Offensive in 1918.
2. Naval Blockade: The U.S. Navy played a major role in enforcing a blockade of German ports, which prevented Germany from receiving critical supplies and resources.
3. Economic Contributions: The U.S. contributed significant resources to the war effort, including food, weapons, and money.
4. Entry of fresh troops: The entry of fresh American troops into the war helped to boost the morale of the Allied forces, as well as provide additional manpower to fight on the front lines.
Overall, the American war effort contributed significantly to the defeat of the Central Powers. The entry of the U.S. into the war provided the Allies with additional resources, manpower, and supplies, which helped to turn the tide of the war. Additionally, the American economy played a crucial role in the war effort, as the U.S. was able to fund the war through loans and other financial contributions. In the end, the combined efforts of the Allies, including the U.S., led to the defeat of the Central Powers and the end of World War I.