Troop engagements of the American Civil War, 1861 be the Confederate Territory of Arizona and raised several militia companies, which fought several skirmishes with both the Union forces remaining in the territory and the Apache tribes. Troop engagements of the American Civil War, 1861 The following is a list of engagements that took place in 1861 during the American Civil War. The war started on April 12 when Confederate forces commanded by General P. G. T. Beauregard opened fire on the Union garrison of Fort Sumter in the harbor of Charleston, South Carolina; after a thirty-four-hour bombardment, the Union garrison surrendered. There had been no casualties during the
Fort Washita west to protect the new frontier. The Army established Fort Cobb in October 1859. Many men who served at Fort Washita would go on to become famous, including Randolph B. Marcy, George McClellan, William G. Belknap and Theophilus H. Holmes. Federal troops still occupied Fort Washita when the Confederates fired on Fort Sumter on April 12, 1861. Expecting war Colonel William Emory had concentrated all of his Federal troops from Forts Arbuckle and Cobb at Fort Washita. When news of Fort Sumter reached Emory on April 16 he led his forces to Fort Leavenworth, Kansas, pursued by 4000 Texas militia