War Department General Staff
The seal of the U.S. Department of War.
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| Executive department overview | |
|---|---|
| Formed | August 7, 1789 |
| Dissolved | September 18, 1947 |
| Superseding agencies | |
| Minister responsible | |
| Child executive department | |
| 1945 War Department Organization |
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.
The Secretary of War, a civilian with such responsibilities as finance and purchases and a minor role in directing military affairs, headed the War Department throughout its existence.
The War Department existed from August 7, 1789 until September 18, 1947, when it split into Department of the Army and Department of the Air Force and joined the Department of the Navy as part of the new joint National Military Establishment (NME), renamed the United States Department of Defense in 1949.
Shortly after the establishment of a strong government under President George Washington in 1789, Congress created the War Department as a civilian agency to administer the field army under the president (as commander in chief) and the secretary of war. Retired senior General Henry Knox, then in civilian life, served as the first United States Secretary of War.
Forming and organizing the department and the army fell to Secretary Knox. Direct field command of the small Regular Army by President Washington leading a column of troops west through Pennsylvania to Fort Cumberland in Maryland in 1794 to combat the incipient Whiskey Rebellion on the frontier was an occasion never since used by American Presidents. The Possibility of re-organizing a "New Army" under nominal command of retired President and Major General George Washington and his aide, former Treasury Secretary Alexander Hamilton to deal with the rising tide of maritime incidents between American commerce ships and the new French Republic was authorized by second President John Adams in 1798 and the remote possibility of land invasion was an interesting adventure. On November 8, 1800 the War Department building with its records and files was consumed by fire.
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