Marine Corps Gen. Joe Dunford, right, chairman of the Joint Chiefs of Staff; Navy Adm. Mark Ferguson, center, commander of Allied Joint Force Command; and Air Force Gen. Phillip M. Breedlove, outgoing commander of U.S. European Command, talk before the change-of-command ceremony for U.S. European Command at Patch Barracks in Stuttgart, Germany, May 3, 2016. DoD photo by D. Myles Cullen