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The Sammy B. took part in the Battle off Samar, the final phase of the Battle of Leyte Gulf in October 1944, in which the Imperial Japanese Navy suffered its biggest loss of ships and failed to dislodge the U.S. forces from Leyte, which they invaded earlier as part of the liberation of the Philippines.

According to some records, the destroyer disabled a Japanese heavy cruiser with a torpedo and significantly damaged another. After having spent virtually all its ammunition, she was critically hit by the lead battleship Yamato and sank. Of a 224-man crew, 89 died and 120 were saved, including the captain, Lt. Cmdr. Robert W. Copeland.

Source: Navy Times.

For those who aren't aware, after the Battle of Leyte Gulf, the Imperial Japanese Navy was finished as a fighting force.

In the words of (British Major General) J. F. C. Fuller, on the outcome of the Battle of Leyte Gulf:

The Japanese fleet had ceased to exist, and, except by land-based aircraft, their opponents had won undisputed command of the sea. When Admiral Ozawa was questioned on the battle after the war he replied: "After this battle the surface forces became strictly auxiliary, so that we relied on land forces, special [Kamikaze] attack, and air power ... There was no further use assigned to surface vessels, with the exception of some special ships."
And "Admiral Mitsumasa Yoni, Navy Minister of the Koiso Cabinet, said he realized that the defeat at Leyte 'was tantamount to the loss of the Philippines.' As for the larger significance of the battle, he said, 'I felt that it was the end.'"