 Complete the following phrase:  By mid-December 1861 Sherman had recovered sufficiently to return to service under Halleck in the Department of the Missouri. In March, Hallecks command was redesignated the Department of the Mississippi and enlarged to unify command in the West. Shermans initial assignments were rear-echelon commands, first of an instructional barracks near St. Louis and then in command of the District of Cairo. Operating from Paducah, Kentucky, he provided logistical support for the operations of Brig. Gen. Ulysses S. Grant to capture Fort Donelson in February of 1862. Grant, the previous commander of the District of Cairo, had just won a major victory at 