Personnel from the 544th Military Police, Army National Guard, Yauco, Puerto Rico and the 125th Headquarters Detachment Army National Guard, Ponce, Puerto Rico leave the flightline after unloading equipment and personal bags from the American Trans Air L-1011 that delivered their units to Biggs Army Airfield, El Paso, TX. These units are participating in Roving Sands '96, the largest annual US joint air defense training exercise