The Starfleet 34th Fleet was a military unit, a fleet group of the Federation Starfleet during the Dominion War, commanded by Admiral Baltren Tozar. The admiral noted the strength of Cardassian Aberax-class ships in after-action reports of the ferocity of combat his fleet faced. (RPG reference book: The Dominion War Sourcebook: The Fires of Armageddon)