Starbase 234

Starbase 234 was a Federation starbase operated by Starfleet in the 24th century. In the late mid-2360s, the base was commanded by Admiral Stewart. 

Following the Battle of Wolf 359 in early 2367, Starbase 234 became the center of anti-Borg technological developments, and was headed up by Commander Elizabeth Shelby. 

By early 2368, the starbase was commanded by Fleet Admiral Shanthi. At this time, the USS Enterprise (NCC-1701-D) traveled to the starbase following the outbreak of the Klingon Civil War. After a meeting with Shanthi, Captain Jean-Luc Picard gained permission to take a task force and blockade the Klingon-Romulan border. 

A few months later, the Enterprise-D was recalled to the base by Fleet Admiral Ruah Brackett. Once the Enterprise arrived, Brackett informed Picard of Ambassador Spock's disappearance and his later discovery on Romulus.