Battle of Leyte Gulf

The Battle of Leyte Gulf, also called the "Battles for Leyte Gulf", and formerly known as the "Second Battle of the Philippine Sea", is generally considered to be the largest naval battle of World War II and, by some criteria, possibly the largest naval battle in history.

It was fought in waters near the Philippine islands of Leyte and Samar 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.

The Battle of Leyte Gulf consisted of four separate engagements between the opposing forces: the Battle of the Sibuyan Sea, the Battle of Surigao Strait, the Battle of Cape Engaño and the Battle off Samar, as well as other actions.

The Battle of Leyte Gulf is also notable as the first battle in which Japanese aircraft carried out organized kamikaze attacks. Also worth noting is the fact that Japan at this battle had fewer aircraft than the Allied Forces had sea vessels, a clear demonstration of the difference in power of the two sides at this point of the war.