Marines with Battalion Landing Team 1st Battalion / 9th Marine Regiment Alpha Company 3rd Platoon, attached to the 24th Marine Expeditionary Unit, perform dry runs before a live fire exercise in a shoot house at Camp Atterbury, IN September 25, 2009. This training, being held during the 24th MEU's Realistic Urban Training evolution, prepares the Marines for missions where they will have to enter and take control of buildings that may have enemy combatants in them while they are deployed with the 24th MEU. (US Marine Corps photo by Sgt Andrew J. Carlson) - Marines with Battalion Landing Team 1st Battalion / 9th Marine Regiment Alpha Company 3rd Platoon, attached to the 24th Marine Expeditionary Unit, perform dry runs before a live fire exercise in a shoot house at Camp Atterbury, IN September 25, 2009. This training, being held during the 24th MEU's Realistic Urban Training evolution, prepares the Marines for missions where they will have to enter and take control of buildings that may have enemy combatants in them while they are deployed with the 24th MEU. (US Marine Corps photo by Sgt Andrew J. Carlson)