Cpl. Isac Pena, a radio operator with 9th Communication Battalion, assembles a retransmission antenna during Large Scale Exercise-1 during annual reserve training at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., on July 10, 2012. The training is part of Exercise Javelin Thrust 2012, an annual large-scale exercise with 1st Marine Expeditionary Brigade which allows active and reserve Marines and sailors from 38 states to train together as a seamless Marine air-ground task force.