1944 – World War II: Battle of Leyte Gulf — the largest naval battle in history, takes place in and around the Philippines between the Imperial Japanese Navy and the U.S. Third and U.S. Seventh Fleets. Afterward is the first Kamikaze attack of the war.
It was fought in waters near the Philippine islands of Leyte, Samar and Luzon from 23–26 October 1944, between combined US and Australian forces and the Imperial Japanese Navy. On 20 October, United States troops invaded the island of Leyte as part of a strategy aimed at isolating Japan from the countries it had occupied in Southeast Asia, and in particular depriving its forces and industry of vital oil supplies. The Imperial Japanese Navy (IJN) mobilized nearly all of its remaining major naval vessels in an attempt to defeat the Allied invasion, but was repulsed by the US Navy's 3rd and 7th Fleets. The IJN failed to achieve its objective, suffered very heavy losses, and never afterwards sailed to battle in comparable force. The majority of its surviving heavy ships, deprived of fuel, remained in their bases for the rest of the Pacific War.