An airman from the 621st Contingency Response Wing based at Travis Air Force Base, Calif., pokes his head from a defensive fighting position on the Geronimo Landing Zone during Joint Readiness Training Center - Decisive Action, Oct. 18, 2012. The exercise includes emphasis on joint forcible entry, phased deployment with an airborne parachute operation, a combined noncombatant evacuation, combine arms maneuver, wide area security, unconventional warfare and unified land operations in a joint, interagency, intergovernmental and multinational environment.