The appearance of enlarged bird of prey style vessels within the Klingon fleet alarmed the Romulan military and intelligence agencies. The fact that another power was using an enlarged version of a warship design they considered their own struck a blow against Romulan national pride. The Klingon K’Vort Bird of Prey helped to cement the dissolution of the tenuous Romulan/Klingon alliance, though the alliance had been little more than intellectual for some time.
The Romulans designed and quickly deployed a design similar to the Klingon K’Vort. Less robust and equipped with sub-standard shield systems, the D’vas Bird of Prey was incredibly well armed for a ship of its size. Like the Vas’Calabams before them, the Romulans chose to install two deadly plasma mortars in the forward weapons pod the Klingons typically designed for their torpedo weapons.