Air Force Chief of Staff Gen. Mark A. Welsh III enters the U.S. Air Force Academy's Falcon Stadium for graduation ceremonies for the Class of 2015 in Colorado Springs, Colo., May 28, 2015. Air Force Chief of Staff Gen. Mark A. Welsh III enters the U.S. Air Force Academy's Falcon Stadium for graduation ceremonies for the Class of 2015 in Colorado Springs, Colo., May 28, 2015. SHARE IMAGE: Download Image: Full Size (2.61 MB) Tags: Photo Essays Photo By: VIRIN: 944964-R-HFG60-864.jpg Photo Gallery