The Union Army gained military control of Tennessee in 1862 and occupied it for the duration of the war, having taken control of strategic cities and railroads. Forrest continued to lead his men in small-scale operations, including the Battle of Dover and the Battle of Brentwood until April 1863. The Confederate army dispatched him with a small force into the backcountry of northern Alabama and western Georgia to defend against an attack of 3,000 Union cavalrymen commanded by Colonel Abel Streight. Streight had orders to cut the Confederate railroad south of Chattanooga, Tennessee to seal off Bragg's supply line and force him to retreat into Georgia. Forrest chased Streight's men for 16 days, harassing them all the way. Streight's goal changed from dismantling the railroad to escaping the pursuit. On May 3, Forrest caught up with Streight's unit east of Cedar Bluff, Alabama. Forrest had fewer men than the Union side but feigned having a larger force by parading some repeatedly around a hilltop until Streight was convinced to surrender his 1,500 or so exhausted troops (historians Kevin Dougherty and Keith S. Hebert say he had about 1,700 men).