"Sherman first saw combat at the Battle of First Manassas, where he commanded a brigade of Tyler’s Division. Although the Union army was defeated during the battle, President Abraham Lincoln was impressed by Sherman’s performance and he was promoted to brigadier general on August 7, 1861, ranking seventh among other officers at that grade. He was sent to Kentucky to begin the Union task of keeping the state from seceding. While in the state, Sherman expressed his views that the war would not end quickly, and he was replaced by Don Carlos Buell. Sherman was moved to St. Louis, where he served under Henry W. Halleck and completed logistical missions during the Union capture of Fort Donelson. During the Battle of Shiloh, Sherman commanded a division, but was overrun during the battle by Confederates under Albert Sydney Johnston. Despite the incident, Sherman was promoted to major general of volunteers on May 1, 1862. After the battle of Shiloh, Sherman led troops during the battles of Chickasaw Bluffs and Arkansas Post, and commanded XV Corps during the campaign to capture Vicksburg. At the Battle of Chattanooga Sherman faced off against Confederates under Patrick Cleburne in the fierce contest at Missionary Ridge. After Ulysses S. Grant was promoted to commander of all the United States armies, Sherman was made commander of all troops in the Western Theatre, and began to wage warfare that would bring him great notoriety in the annals of history."