 The system was used by military customers in the US and later in Australia.Most of the satellites were retired in the 1990s, but one would remain operational until 2015.During the First Gulf War, Leasat would be used for personal communications between Secretary of State James Baker and President George H. W. Bush, but was more typically used by "mobile air, surface, subsurface, and fixed earth stations of the Navy, Marine Corps, Air Force, and Army."