In the Confederacy, LeRoy Walker was the first to 
In the Confederacy, LeRoy Walker was the first to occupy this position. William Belknap was the only man of this position to be impeached, and it was last held by Kenneth Clairborne Royall. The first man to hold this post was charged with transporting the artillery captured at Fort Ticonderoga, while another was protected by the Tenure of Office Act from removal by Andrew Johnson. For 10 points, name this position held by Edwin Stanton and Henry Knox, combined with the navy department in 1947 to form the Secretary of Defense.
In the Confederacy, LeRoy Walker was the first to occupy this position.
United States {Secretary} of {War}