Delta IV The United Launch Alliance prepares the Delta IV rocket for a military satellite launch at Complex 37, Cape Canaveral Air Force Station, Fla., March 15, 2019. The satellite brings enhanced communication capability for command and control of U.S. military forces on the battlefield. SHARE IMAGE: Download Image: Full Size (3.74 MB) Photo By: Air Force Airman 1st Class Dalton Williams VIRIN: 190315-F-DJ189-1301C.JPG Photo Gallery