Military Division of the Mississippi
The Military Division of the Mississippi was an administrative division of the United States Army during the American Civil War that controlled all military operations in the Western Theater from 1863 until the end of the war . 
<triplet> United States Army <subj> American Civil War <obj> conflict <triplet> American Civil War <subj> Western Theater <obj> has part <triplet> Western Theater <subj> American Civil War <obj> part of