Did The Klingons And Romulans Have A Military Alliance? Have Klingon And Romulan Ships Ever Fought In Star Trek? The Romulan and Klingon empires are the major forces in the Beta Quadrant and have ...

(Star Trek: First Contact) 2151 - Suliban, fighting in a Temporal Cold War, shoots down Klingon warrior Klaang ... alien species and uses two drone ships to try and destabilize these alliances.