Answer :
Final answer:
The Selective Service Act led to increased troops availability, Germany asked for an armistice due to war challenges, and the American Expeditionary Force played a crucial role in key battles.
Explanation:
The Selective Service Act passed by Congress in 1917 required men to register for military service. This led to the drafting of men into the military, increasing the number of troops available for deployment.
Germany asked for an armistice in 1918 due to being near a breaking point in the war. The German army was facing challenges, and there were fears of a revolution similar to Russia if the war continued.
The American Expeditionary Force (AEF) arrived in France in 1917 to aid the allies after further preparations, joining French and British forces in 1918 and playing a significant role in stopping German advances in key battles.
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