1949 disestablishments in the United States

The United States Department of War, also called the War Department, was the United States Cabinet department responsible for the operation and maintenance of the United States Army. It also had responsibility for naval affairs from 1794 until the establishment of the Department of the Navy in 1798, and for most non-naval air forces until the creation of the Department of the Air Force on September 18, 1947.

military department within the Department of Defense of the United States of America

U.S. professional basketball league 1937 to 1949, co-creator of the National Basketball Association by merger

professional American football league (1946–1949)