By the end of World War II, the RAN's combat strength numbered 150 ships with an additional 200 auxiliary craft with the service reaching its peak in June 1945, when it ranks swelled to 39,650 personnel. During the six years of war, the RAN lost three cruisers, four destroyers, two sloops, a corvette, and an auxiliary minesweeper to enemy action. Casualties included 1,740 personnel from the 19 ships sunk, and another 436 personnel killed aboard other ships or at other posts. By most measures, such losses were heavy for such a small service, representing over half its pre-war strength in ships and one-fifth in men. Against this the RAN destroyed one cruiser, an armed merchant raider, three destroyers or torpedo boats, a minesweeper, many light craft and seven submarines. It also destroyed or captured more than 150,000 tons of Axis merchant shipping and shot down more than a hundred aircraft. Although difficult to quantify the RAN also played a role in numerous other successes.