Staff Sgt. Angel Ortega, 571st Mobility Support Advisory Squadron air transportation air advisor, works with Técnico Cuarto Yefferson Oviedo and Tecnico Cuarto Cesar Gomez, Colombian air force members, on properly securing cargo during the pallet build-up seminar June 6 at Commando Aéreo de Transporte Militar, Bogota, Colombia. (U.S. Air Force photo by Tech. Sgt. Lesley Waters)