U.S. Air Force Airman 1st Class Steven Brinkley, a loadmaster assigned to the 61st Airlift Squadron, performs preflight checks on a U.S. Air Force C-130J Super Hercules assigned to the 19th Airlift Wing at Alpena Combat Readiness Training Center, Michigan, May 22, 2021. Mobility Guardian incorporates 1800 personnel across the joint force and the robust integration of 18 mobility aircraft, fighters, bombers, special operations forces and field artillery, dispersed in 6 locations simulating geographically-diverse operating locations to conduct all-domain operations against a highly-capable adversary. (U.S. Air Force photo by Staff Sgt. Joseph Pick)