In late 1944, the Second World War in the Pacific was going badly for Japan. The U.S. Pacific fleet had moved to the Mariana Islands in support of General MacArthur's army, which had landed on the east coast of Leyte in October. The U.S. 7th Fleet was near the Surigao Strait off Leyte. The Japanese strategy was to entrap the U.S. Navy's 7th Fleet by its naval forces from the north in the Sibuyan Sea, and with assault from the south from Surigao Strait. On the afternoon of 24 October, 7th Fleet torpedo-boats moved through Leyte Gulf and Surigao Strait into the Mindanao Sea south of Leyte, and by dusk were in position on their patrol-lines. Covering the northern part of the strait, were posted the destroyer squadrons, cruisers, and battleships to form the horizontal bar to a T of vast fire power which the enemy would be forced to approach vertically as he moved forward. With overwhelming force, the impenetrable gauntlet defeated the Japanese at Surigao Strait and played a significant in winning the Battle of Leyte Gulf and in so helping to secure the beachheads of the U.S. Sixth Army on Leyte against Japanese attack from the sea.