Arkansas in the American Civil War readmitted in July 1866. Arkansas in the American Civil War During the American Civil War, Arkansas was a Confederate state, though it had initially voted to remain in the Union. Following the capture of Fort Sumter in April 1861, Abraham Lincoln called for troops from every Union state to put down the rebellion, and Arkansas and several other states seceded. For the rest of the war, Arkansas played a major role in controlling the vital Mississippi River and neighboring states, including Tennessee and Missouri. It raised 48 infantry regiments, 20 artillery batteries, and over 20 cavalry regiments for the Confederacy,
Campaigns of the American Civil War Campaigns of the American Civil War The campaigns of the American Civil War are categorized in various ways. The U.S. Army Institute of Heraldry has identified 25 campaigns that are used for streamers, decorative devices attached to unit flags that denote participation in historic battles or campaigns. (An alternative campaign categorization is that of the National Park Service, charged with maintaining Civil War battlefields and other historic sites. This categorization is more detailed and inclusive than the Army heraldry version, particularly for actions outside the Eastern Theater and Western Theater; see .) The Civil War campaign streamers are equally divided