The United States Space Administration (USSA) was the agency of the United States federal government responsible for the administration of the nation's space program in the divergent Fallout universe. At it's inception in 1958 it's main tasks were purely scientific. The agency is now broken up into several division, each acting independently, but all answering to the chair head, the Chairman (or woman) and highest ranking member of the USSA.
One of the aforementioned division is the military division, which oversees United States Military operations within space, taking over a duty that had previously been the Air Force's. Broadsword Squad was part of the USSA military division. Then leader of the military division is Admiral Joseph Howard. The current Chairman is James Gray.