Battle Group 4

Battle Group 4 was a task force, a Starfleet battle group military unit of Federation and allied starships deployed in the atemporal Trexelian Expanse to prepare for an invasion by a powerful but unknown enemy. ( mission: "Skirmish")

Logo
The insignia of Battle Group 4 was purple, and placed on a green banner. The logo consisted of two inverted triangles. ( mission: "Skirmish")

History
Exploration of the Trexelian Expanse was underway by stardate 73XX.6 (circa 2270), led by the USS Valiant (TRX-1701) and its replacement, the USS Trexelprise (TRX-1701). Due to unidentified temporal phenomena, objects and people from throughout the 23rd and 24th centuries, especially the 2260s and 2370s decades, were encountered throughout the expanse. By the time the USS Trexelprise (TRX-1701-D) and USS Voyager (TRX-1701-V) were in service, Starfleet and allied ships from both centuries began engaging in war games to test their mettle against hostile forces. ( missions: "Intro", "Skirmish")

Battle Group 4 vessels were classified as tier 4 in strength, and included starships from the Federation and the Klingon Empire. Its base of operations was Space Station Battle Group 4. ( missions: "Skirmish", "Events")

Ships assigned to Battle Group 4

 * Federation ships:
 * heavy cruisers:
 * USS Ambassador
 * USS Valdemar
 * USS Yamaguchi (Ambassador class)
 * light cruisers:
 * USS Ahwahnee (NCC-73620)
 * USS Corinth (Cheyenne class)
 * USS Emperor
 * USS Marauder
 * USS Rapid
 * frigates:
 * USS Concord (NCC-68711)
 * USS Firebrand
 * USS Icon
 * USS Sapphire
 * USS Torch
 * light cruisers:
 * USS Bellerophon (NCC-74705)
 * USS Sagan (NCC-75055)
 * light cruisers:
 * USS Garza
 * USS Sentry (NCC-61890)
 * USS Yeager (NCC-61947)
 * Klingon ships:
 * starships: