Royal Canadian Air Force CC-130J Super Hercules crew members, 436 Transport Squadron, assigned to 8 Wing Trenton, Trenton, Ontario, Canada, chain down a U.S. Army Humvee onto the cargo bay in preparation for the opening training scenario during exercise Mobility Guardian 2019, at Fairchild Air Force Base, Wash., Sept. 14, 2019. Mobility Guardian is Air Mobility Command's premier, large-scale mobility exercise. (U.S. Air Force photo by Tech. Sgt. Larry E. Reid Jr.)