In the late 2260s the station was under the command of Doctor James Munroe, who was from New Texas on Earth. Under his administration, Espoir became the headquarters of a superweapon project led by Ies Bredell, who sought to use the enormous power of Gravity's End to destroy the Federation.
During the Bredell affair, Espoir's weaponry included a modified tractor/overload beam that incapacitated the USS Enterprise (NCC-1701) upon its arrival to investigate the station. The station's security force was made up entirely of Vardaine officers in Bredell's service. (TOS video game: Judgment Rites)