US Space Force members get a rebrand, from spacefighters to 'Guardians' Announcement mocked on social media with the Force accused of pilfering ideas from space fiction Mike Pence announces members of Space Force to be known as Guardians Credit: Andrew Hamik/AP Members of the US Space Force, America's first military service in more than 70 years, will be known as "Guardians", Mike Pence said on Friday. “Soldiers, sailors, airmen, marines and guardians will be defending our nation for generations to come," Mr Pence said. The vice-president made the announcement at a ceremony to mark the first birthday of the newest branch of America's armed forces.