The U.S. Air Force Air Demonstration Team, the Thunderbirds, perform their demonstration in preparation for the commander of Air Combat Command at Nellis Air Force Base, Nev., March 2, 2015. Since the team’s inception, 325 officers have worn the distinguished emblem of "America’s Ambassadors in Blue." Through selfless dedication, a desire to excel and a constant commitment to improvement, these leaders have channeled their efforts into making the Thunderbirds what they are today. (U.S. Air Force photo by Senior Airman Thomas Spangler)