After the Battle of Antietam in fall of 1862, thirteen Union governors assembled in Altoona, Pennsylvania, at the Loyal War Governors' Conference. This meeting was assembled by Governor Andrew G. Curtin and its purpose was to discuss strategy, troop quotas and the Union. The governors affirmed their support towards, as well as expressed their concerns regarding the war effort and the emancipation proclamation. They then traveled to Washington, DC, to meet Abraham Lincoln and relay their conclusions to him. A few weeks later, Lincoln removed General George B. McClellan from commanding the Army of the Potomac (about whom the governors had voiced their displeasure), and issued the Emancipation Proclamation.