Hooker led his corps (now designated the XX Corps) competently in the 1864 Atlanta Campaign under Sherman, but asked to be relieved before the capture of the city because of his dissatisfaction with the promotion of Maj.
After leaving Georgia, Hooker commanded the Northern Department (comprising the states of Michigan, Ohio, Indiana, and Illinois), headquartered in Cincinnati, Ohio, from October 1, 1864, until the end of the war [REF].