Navy Petty Officer 2nd Class Marlon Esmade, a corpsman with 3rd Battalion, 3rd Marine Regiment, based out of Marine Corps Base Hawaii, Kaneohe Bay, provides medical treatment to simulated casualty Cpl. Justin Edelbach, an automotive organizational mechanic with the motor transport platoon, 3/3, during an advanced convoy exercise on training ranges surrounding Yuma, Ariz., Thursday, Oct. 2, 2014. The IED was added by the staff to surprise the motor transport specialists and add depth to the evolution of the exercise.