Final answer:
The AEF reached full strength in Europe in 1919. General Pershing wanted to keep the AEF as a separate force and led successful offensives against the Germans.
Step-by-step explanation:
The AEF reached full strength in Europe in 1919. General Pershing refused the request from the French and British to integrate the American soldiers into their own troops, instead keeping the AEF a separate force. By August, the AEF helped win the Second Battle of Marne and mounted offensives against the Germans at Saint-Mihiel and in the Meuse-Argonne area.