The Tenth Fleet was a numbered fleet in the United Federation of Planets Starfleet, active during at least the 23rd and 24th centuries. In January 2374, Federation President Rosarev -- in his role as Commander-in-Chief of Federation forces -- ordered the Seventh, Ninth and Tenth Fleets to the Spinward Theater of Operations. (Dominion War Timeline: "Early Dominion Victories: January-June 2374")