Here a pair of aging Panastra QF-108 'Vulture' interceptors have intercepted and shot down one of the Federation 'smart mines' launched in great quantities during the Minute War. Blurring the line between area denial and terror weapons, the mines were designed to destroy commercial and military targets in Neptune's Lagrange points. Most mines never reached their targets, and nearly as many are still a threat: Their elliptical orbits they were placed in ensures that many will still be seeking their quarry for at least another decade.
While not intelligent as such, the mines are controlled by a sufficiently sophisticated expert system that the most effective way to combat them is to make a very high speed approach from outside their sensor range. An energy weapon discharged from an interceptor traveling at a significant fraction of c will almost always give the mine insufficient time to arm itself or maneuver before it's destroyed. Fortunately, the warheads used by the Federation were relatively fragile. Even light damage will tend to rupture the pressure vessels that hold the deuterium booster, causing it to boil harmlessly into space.
The Vultures themselves are another relic of this conflict, with a handful of pilots flying ships older than their grandfathers, still fighting a war that's been over for sixty years. They are visible from Neptune Trojans with the naked eye when they first burn their boost engines, flares of bright radiance against the deeper of Neptune itself. Bets are placed among the station crews at Hatross and Bodie as to the results of each sighting, one army of ghosts fighting another in the blue night.