U.S. Marines with Company L, 3rd Battalion, 7th Marine Regiment, participate in a Key Leader Engagement lane during Enhanced Mohave Viper Range 220, Marine Corps Air Ground Combat Center Twentynine Palms, Calif. July 19, 2011. The training was in preparation for an upcoming deployment to Afghanistan. - U.S. Marines with Company L, 3rd Battalion, 7th Marine Regiment, participate in a Key Leader Engagement lane during Enhanced Mohave Viper Range 220, Marine Corps Air Ground Combat Center Twentynine Palms, Calif. July 19, 2011. The training was in preparation for an upcoming deployment to Afghanistan.