World War I: Records of the American Expeditionary Forces, and Diplomacy in the World War I Era World War I: Records of the American Expeditionary Forces, and Diplomacy in the World War I Era Access information: Access on and off campus. Description: This resource offers extensive documentation on the American Expeditionary Forces (AEF) during World War I as well as materials on U.S. intelligence operations and the post-war peace process. AEF documents consist of correspondence, cablegrams, operations reports, statistical strength reports and summaries of intelligence detailing troop movements and operations of Allied and enemy forces. The vast majority of the AEF documents date from April 26, 1917 - July 2, 1919. Coverage: 1915-1927. This article was published on 2024-08-21