To be combat-ready Reconnaissance Marine
After resting less than eight hours during their six-day patrol, Sgt. Jon Rosenberg, left, and other Marines start their Escape and Evasion exercise with singing The Marine Corps Hymn in a cloud of gas from gas grenades and then tear gas canisters. To be combat-ready Reconnaissance Marine, students have to go through ten weeks training that required them to challenge their physical and mental limits.