One of the moons of Bajor and the site of a concealed Resistance base, where Kira and Dax recover an old raider during the coup attempt shown in The Siege.
In The Siege, set in 2370, the extremist movement known as the Circle seizes power on Bajor and its troops move to take Deep Space 9. Sisko has proof that the Circle's weapons were supplied by the Cardassians, but all communication with the planet is blocked.
Kira remembers that the Resistance once hid a handful of small sub-impulse raiders at a base on Lunar V. She and Dax fly there and find the place abandoned, cobwebbed and infested with large spider-like creatures. One raider can still be coaxed into flight.
The two take the cramped, barely spaceworthy craft down to Bajor, where they are shot down by Bajoran interceptors and crash. Kira is hurt, but they reach the Chamber of Ministers with the evidence, and the coup collapses.