Lance Cpl. Joseph J. Gefhard sets up an antenna during Mojave Viper.
U.S. Marine Corps Lance Cpl. Joseph J. Gefhard, with Headquarters and Service Company, 3rd Battalion, 4th Marine Regiment, sets up an antenna during Mojave Viper at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., on Jan. 25, 2011. Mojave Viper is a 30-day exercise that prepares Marines for deployment to Afghanistan.