When the Allies captured the Chin'Toka system at the end of 2374, one of the planets seized was AR-558. The Starfleet contingent which invaded the planet found that it housed a communications array, the largest in the entire sector. Starfleet realised it had a possible way to access Dominion communications over a wide area, gaining vital intelligence. Shortly afterwards, the USS Veracruz arrived with replacement troops. The wounded were evacuated to Starbase 371, leaving AR 558 in the hands of the reinforcements.