United Federation of Planets
In the fictional universe of Star Trek, the United Federation of Planets (UFP) is the interstellar government with which, as part of its space force Starfleet, most of the characters and starships of the franchise are affiliated. Commonly called "the Federation", it was introduced in the original Star Trek television series. The survival, success, and growth of the Federation and its principles of freedom have become some of the Star Trek franchise's central themes.