CADENCE CALL U.S. Marine Corps Gunnery Sgt. Dean A. McCown calls cadence during a formation run in Garden City, N.Y., Sept. 9, 2013. Throughout the run, the Marines took turns calling cadence to help motivate each other and build camaraderie. McCown, a data chief, is assigned to the 1st Marine Corps District. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 931476-Z-HOC94-434.jpg Photo Gallery