These Dominion battlecruisers were introduced during the conflict with the Federation to combat Starfleets use of efficient battle designs such as the Achilles-class warships. The Jem'Hadar battlecruiser is as heavily armed as the CardassianGalor-class and possessed better shielding than Jem'Hadar strike cruisers. These cruisers were designed to destroy any opposition that they could find but still be capable of retreating at a faster pace should it face a better armed enemy. They were also the largest Dominion ship that could be repaired outside friendly territory, allowing the Jem'Hadar to take and hold positions more effectively without returning to their bases. Typically, they were escorted by Jem'Hadar fighters in battle making their combined use an effective tactic against their enemies.