The Trump administration Opens a New Window. is set to launch the U.S. Space Command on Thursday, a key step as military Opens a New Window. officials work to establish a proposed sixth branch of the military known as the Space Force. U.S. Air Force Gen. John Raymond will serve as the first head of Space Command (SPACECOM). At launch, Raymond will lead 87 active units handling operations such as missile warning, satellite surveillance, space control and space support, Gen. Joseph Dunford said at a meeting of the National Space Council earlier this month. "The United States Space Force will...