"Wing Commander II: Vengeance of the Kilrathi is the first sequel in Chris Roberts' Wing Commander science fiction space combat simulator franchise of computer games, produced by Origin Systems.
Released in 1991, Wing Commander II retains much of the first game's core conventions: an interstellar war between the Terran Confederation and the felinoid warrior race called the Kilrathi, multiple allies as wingmen, and a wide variety of ships on both sides of the war. However, WC2 places a greater emphasis on storytelling, providing various sprite-animated cutscenes and some of the industry's first examples of voice acting. The storyline is also somewhat less open-ended: the game's campaign tree is much more structured and the player character can no longer be promoted or awarded medals. Wingmen can no longer be killed during normal gameplay; when their fighters are damaged beyond repair, they eject (though some die in scripted sequences). Finally, because the story is a direct sequel to WC1, many Kilrathi ships have names similar to the WC1 ships they replace (for instance, the "Sartha" replaces the "Salthi", and the Confederation uses an upgraded version of the Rapier medium fighter).
The year 2656. The TCS Tiger's Claw, pride of the Terran fleet, is on campaign in the Enigma sector, near the Kilrathi sector headquarters, the K'tithrak Mang starbase. In a sudden attack, it is lost with all hands, save a few pilots who had been transferred off, and one who was out on patrol..."
Source: Wikipedia, "Wing_Commander_II:_Vengeance_of_the_Kilrathi," available under the CC-BY-SA License.