Starfleet 1st Fleet

The Starfleet 1st Fleet was a fleet group of the Federation Starfleet during the Dominion War. In 2374 was teamed with the 14th Fleet and elements of the 19th Fleet in the defense of Alpha Centauri after the fall of Betazed. After the 2375 attack on Earth, the 1st Fleet succeeded in driving off the Breen assault force. (RPG reference book: The Dominion War Sourcebook: The Fires of Armageddon)