Camp Shelby is a military post whose North Gate begins at the southern boundary of Hattiesburg, Mississippi

Hattiesburg, Mississippi

Hattiesburg is a city in Forrest County, Mississippi, United States. The population was 44,779 at the 2000 census . It is the county seat of Forrest County...

, on United States Highway 49. It is the largest state owned training site in the nation. During wartime, the camp's mission is to serve as a major, independent mobilization station of the United States Army Forces Command

United States Army Forces Command

United States Army Forces Command is the largest Army Command and the preeminent provider of expeditionary, campaign-capable land forces to Combatant Commanders. Headquartered at Fort Bragg, North Carolina, FORSCOM consists of more than 750,000 Active Army, U.S. Army Reserve, and Army National...

 (FORSCOM). Camp Shelby Joint Forces Training Center is the largest reserve component training site, covering 136000 acres (550 km²), allowing up to battalion level maneuver training, Gunnery Table 8-12, field artillery firing points and a wide range of support facilities.