Colin Deeds, University of Arizona Latin American Studies Center assistant director, lectures during a speaker series event at Davis-Monthan Air Force Base, Ariz., June 19, 2017, for the 12th Air Force (Air Forces Southern) Academic Outreach Program with the University of Arizona. Following the event, the University of Arizona officials were given a tour of the 309th Aerospace Maintenance and Regeneration Group, the largest aircraft storage and preservation facility in the world. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)