The Battle (Star Wars vs. Star Trek)

Captain Sulu took the USS Excelsior near the Klingon border when the moon Praxis exploded. The explosion created a temporal vortex in which the USS Vengeance, a Federation warship with a jet black hull, emerged! The Vengeance was from the alternate reality and was designed by John Harrison (also known as Khan Noonien Singh) and was commanded by the evil Admiral Marcus. The Klingons attacked the Vengeance with 3 K'Tinga-class battle cruisers and she destroyed all 3 but suffered bad damage. Sulu reported the incident to Starfleet, which sent the entire Federation First Fleet to intercept the Vengeance. The Vengeance opened a temporal vortex and went in. The Federation First Fleet went after the Vengeance. The vortex took the Vengeance and the First Fleet to the Star Wars universe, before the events of The Empire Strikes Back. The Rebel Alliance and the Galactic Empire were fighting against each other when the Vengeance attacked them. The Rebels and the Imperials put their differences aside and joined forces to battle the Vengeance. The combined Federation-Rebel-Imperial force battled the Vengeance in a fierce battle. 6 Federation starships, 2 Rebel cruisers, and 3 Imperial Star Destroyers were destroyed and 10 Federation starships, 1 Rebel cruiser, and 2 Imperial Star Destroyers suffered bad damage. The Vengeance was not so lucky. She was destroyed with all hands lost.