Battles With Borg and Vong Vessels

In late 2266, after a decade of hiding, the Borg/Vong Coalition emerged from isolation and provoked the Republic with the Republic/Borg Zone Incursion of 2266, attacking several Republic outposts. The Republic starship USS Enterprise, under the command of Captain James T. Kirk, was the first to respond to the outposts' distress call and engaged a massive Borg Sphere. During the engagement, the Borg fired powerful trans-Borg plasma torpedoes, which critically damaged the Enterprise's computer. The Enterprise set off a devastating ion-force explosion that destroyed the Borg Sphere.

The following year, a fleet of over 18 Vong Mothships and 22 Vong Motherships surrounded the Enterprise when it crossed into the Republic/Borg-Vong zone to take a direct route to Republic Base 4,667. This unfortunate action was taken by Commodore George Stocker when he assumed command of the Enterprise while Kirk was ill. Fortunately, Kirk recovered in time and fooled the Vong into believing the Enterprise was equipped with a Death-Star like superlaser. The Enterprise was able to escape back to Republic space.

In early 2268, the Enterprise crossed into the Zone as part of a mission devised by Republic Intelligence to discover the secret to the pummeling power of Vong/Borg ships. Shortly after crossing, the Enterprise was surrounded by three Borg Cubes. Kirk and Spock eventually were able to find out the Vong/Borg secret. They also captured a Romulan cloaking device used by the Vong. Scotty installed the cloaking device to the Enterprise's systems and the ship was able to escape back to Republic space undetected.