The secession crisis of 1860-61 in the lower Mississippi valley represents the crisis in the South as a whole. Secession is more contentious, and southern Unionism more prevalent, in Arkansas and Tennessee than in Louisiana and Mississippi. Support for secession initially corresponds to areas of plantation agriculture and large slaveholdings, but the Confederacy receives overwhelming white support after secession. Events outside the region shape the Union’s initial approach to the rebellion and to the problem of fugitive slaves, though the region also experiences internal disruptions in mobilizing for war. The lower Mississippi valley initially experiences little direct effect from the war, but control of the Mississippi River soon becomes central to Union strategy. By early 1862, preparations were underway for Federal incursions into the region. Although the issue of slavery becomes unavoidable, notions of “Reconstruction” remain limited, and few Northerners envision a reunion predicated on the abolition of slavery.