A concise chronological account of Texas’s role in the Civil War, beginning with the state’s 1860 social and economic makeup and its political divisions over secession. It traces the decision to leave the Union, the mobilization of troops, and military campaigning in 1861–1862, then follows Texas units serving in other theaters and the increasing isolation of the Southwest by 1863. The narrative outlines the declining Confederate position in 1864–1865, internal strains, and the eventual collapse of Confederate authority in Texas, and is rounded out with notes, a bibliography, and a chronology for reference.