Star Trek: Armada

Armada is a real-time strategy game in which players select a faction from the Star Trek universe and build fleets of starships and space station bases to conduct battle. Four playable factions are featured in the game: the Federation, the Klingons, the Romulans, and the Borg. The game features a continuous campaign of 20 missions divided into five parts: one for each of the playable races and a fifth part in which the player fights against the Borg. (wikipedia.org)