What significant body did the Air Service join in 1918?

In 1918, the Air Service joined the American Expeditionary Force (AEF), which was the United States armed forces sent to Europe during World War I. This union was significant because it marked the integration of air power into the larger military structure, allowing for coordinated support of ground troops. The AEF was instrumental in the U.S. military’s operational strategies during the war, and the inclusion of the Air Service represented the growing importance of aviation in modern warfare. Air units provided vital reconnaissance, tactical support, and air superiority that were essential for the success of ground operations. This partnership also helped establish the foundation for the future roles of air power within the U.S. military.