The USS Archer (NCC-44278) was a 24th century Federation starship operated by Starfleet.
In 2379, the Archer was assigned to Star Fleet Battle Group Omega. This battle group was redirected by Starfleet Command to sector 1045 for a rendezvous with the USS Enterprise-E, which was returning from Romulan space with the Reman warbird Scimitar, under the command of Shinzon, in pursuit. The Enterprise was forced to face the Scimitar without the support of the fleet, however, when Shinzon ambushed the Enterprise in the Bassen Rift. (Star Trek Nemesis)