In the meantime, after Admiral Halsey received information indicating that a battered Center Force had begun retirement, Ozawa's decoy force finally managed to draw the American carriers off to the north. However, Kurita's retrograde movement proved to be only temporary, and he once again reversed course and headed back toward San Bernardino Strait. With Oldendorf regrouping his warships in Leyte Gulf and Halsey off chasing the Japanese Navy's aircraft carriers, only three Task Groups—composed of escort carriers, destroyers, and destroyer escorts—remained off Samar island between Kurita and Leyte Gulf. USS "White Plains" was an element of "Taffy 3," the northmost of the three Task Groups, and the one which bore the brunt of Kurita's surface onslaught. "Taffy 3", commanded by Rear Admiral Clifton Sprague, first learned of Kurita's presence when, at 0637, a pilot on routine air patrol spotted Kurita's task force and attacked it with depth charges. Rear Admiral Sprague was incredulous about the presence of the Japanese Navy, and he demanded identification verification—which came, disconcertingly enough, when the enemy battleships' pagoda-style masts loomed over the horizon.