Canada- and Vanguard-class battleships are treated as parts of one battle line rather than isolated designs. The Canada class brings twelve 15-inch guns but raises concern about the density of its lighter armament. Pairing it with Vanguards supplies a much larger volume of six-inch fire while the heavy batteries engage at long range. Complementary ship classes can cover one another's weaknesses and give the formation layered protection.
Notable Point · 1:33:56-1:35:04
How complementary battleship divisions create layered firepower
Two battleship classes are grouped so heavy guns dominate at range while their combined six-inch batteries protect the formation against light forces closing in.