In October 1944, after repairs at the naval base at Manus Island in the Admiralty Islands, USS "White Plains" headed for the invasion of the Philippines at Leyte. The initial assault went forward on 20 October. Aircraft from "White Plains" provided air support for the troops and ASW and combat air patrols for the ships assembled in Leyte Gulf. However, because of the strategic importance of the Philippines which lay athwart their lines of communication with the East Indies, the Japanese chose to oppose the landings with their surface fleet. They launched their surface counterattack in three distinct phases. While a decoy force of carriers under Admiral Jisaburō Ozawa moved south from Japan in an attempt to draw off Halsey's Third Fleet and the large carriers, the forces under Vice Admirals Shōji Nishimura and Kiyohide Shima attempted to force the Surigao Strait from the south, and Vice Admiral Takeo Kurita's Center Force tried to sneak through the Central Philippines and transit the hopefully unguarded San Bernardino Strait. The Center Force, by far the strongest of the enemy fleets involved, consisted of five battleships - including the huge superbattleships and - 11 heavy cruisers, two light cruisers, and 19 destroyers. By the time Kurita's Center Force cleared the San Bernardino Strait on 25 October, it had been reduced by four heavy cruisers and the battleship "Musashi". Three heavy cruisers had fallen prey to American submarine attacks in Palawan Passage on 23 October, and "Musashi" and succumbed to Task Force 38's air attacks in the Sibuyan Sea on the following day. "Musashi" sank there, and "Myōkō" headed back to Brunei Bay, heavily damaged. In addition, on the night of 24 October and 25 October, Vice Admiral Oldendorf's old battleships in Leyte Gulf obliterated Nishimura's force and sent Shima's packing.