Lance Cpl. Luis Herrera and Lance Cpl. Kevin Rhodes, forward observers serving with 2nd Battalion, 11th Marine Regiment, observe key features in the terrain before conducting a training and readiness examination during a live-fire exercise here, April 3, 2013. Rhodes, a 20-year-old native of Quincy, Mass., and Herrera, a 23-year-old-native of Chino, Calif., are training to deploy with the 31st Marine Expeditionary Unit. - Lance Cpl. Luis Herrera and Lance Cpl. Kevin Rhodes, forward observers serving with 2nd Battalion, 11th Marine Regiment, observe key features in the terrain before conducting a training and readiness examination during a live-fire exercise here, April 3, 2013. Rhodes, a 20-year-old native of Quincy, Mass., and Herrera, a 23-year-old-native of Chino, Calif., are training to deploy with the 31st Marine Expeditionary Unit.