Federation-Klingon border

The Federation-Klingon border was the shared border between the United Federation of Planets and the Klingon Empire.

In early 2373, the Klingon Fourth Battlegroup crossed the border from the Cursa system and attacked the Federation colony at Belis IV.

In mid-2373, the Starfleet Fifth Fleet was stationed near the Federation-Klingon border. Following the rogue attacks on the Klingons by the USS the Fifth Fleet deployed in defensive positions along the border in case of Klingon reprisal.