Noun
a command of the United States Air Force that is responsible for defending the United States through its space and intercontinental ballistic missile operations
Source: WordNetIt’s largely taking over from the US Air Force Space Command, which was established back in the early 1980s. Source: Internet
“Guardians is a name with a long history in space operations, tracing back to the original command motto of Air Force Space Command in 1983, ‘Guardians of the High Frontier,'” the Space Force explained on Friday. Source: Internet