Atago'' was repeatedly modernized and upgraded throughout her career in order to counter the growing threat of air strikes, and in her final configuration was armed with ten 20 cm/50 3rd Year Type naval guns (5x2), eight Type 89 12 cms  dual purpose guns, (4x2), and 16 Type 93 "Long Lance" torpedoes in four quadruple launchers (plus 8 reloads).