Classified mission launched by the Space Development Agency (SDA) for Tranche 1 Tracking Layer.
United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.INFO WIKI
The U.S. Space Force launch procurement office on June 8 announced an additional 12 missions assigned to SpaceX and United Launch Alliance under the National Security Space Launch Phase 2 contract.