Star Trek: Edge of Apocalypse
The Kalandra system is fairly inhospitable place, with frequent, large ion storms. Depending on conditions, this can either make it an excellent hiding place, or make any vessels there far easier to spot.
For much of the Dominion War, Kalandra remained a key staging ground, especially for Starfleet, because of its special conditions, its position between Dominion and Federation space, and the absence of a civilian population. In early 2374, the Battle of Kalandra was fought between Dominion forces and the Federation’s 8th Fleet. The USS Agora NCC-5099 was fortuitously able to provide last-minute intelligence on the attacking fleet, and arrived late, but still in time to assist the USS Aquarius NCC-71833.