Air Force One departs from Joint Base Andrews, Md., carrying United States President Barack Obama March 20, 2016. Obama and Cuban President Raul Castro restored diplomatic relations on July 20, 2015, with simultaneous speeches announcing their countries would begin normalizing relations. The last U.S. president to visit Cuba was Jimmy Carter on March, 2011. (U.S. Air Force photo by Senior Airman Joshua R. M. Dewberry/RELEASED)