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 general might command a separate field army, a lieutenant general a corps, a major general a division, and a brigadier general a brigade. By thus more exactly defining official status, jealousies were minimized. Until Grant was made lieutenant general in 1864, the Federal Army had only two grades of general officers, major general and brigadier general. This led to confusion, to bickerings, and to petty jealousies. Since a major general might command such distinct and self-contained units of organization as a division, a corps, or a separate field army, numerous special assignments by the President became necessary.

The Confederate Army had another feature of organization that was epoch-making. Samuel Cooper had been adjutant general of the United States Army, with the rank of brigadier general, issuing orders over his own signature from Washington “by command of” somebody else—Brevet Lieutenant General Scott or the Secretary of War. Because of his acknowledged efficiency in office work and administrative routine, Samuel Cooper was made adjutant general and inspector general of the Confederate Army. Did they give him the rank of brigadier general? No, sir; they made