B65(? En:Design B-65 cruiser)????????????? . Design B-65 was a class of Super Type A cruisers planned by the Imperial Japanese Navy (IJN) before and during World War II. As envisioned by the IJN, the cruisers were to play a key role in the Night Battle Force portion of the “Decisive battle” strategy which Japan hoped, in the event of war, to employ against the United States Navy.