Question: a place which houses the offices of the war department of usa
Answer: The United States Department of War , also called the War Department ( and occasionally War Office in the early years ) , was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army , also bearing responsibility for naval affairs until the establishment of the Navy Department in 1798 , and for most land - based air forces until the creation of the Department of the Air Force on September 18 , 1947 .