As an archipelago, the Philippines comprises about 7,641 islands clustered into three major island groups: Luzon, the Visayas, and Mindanao. Only about 2,000 islands are inhabited, and more than 5,000 are yet to be officially named.
The following list breaks the islands down by region and smaller island group for easier reference.
Ruy López de Villalobos (Spanish pronunciation: [ruj ˈlopeθ ðe βiʝaˈloβos]; c. 1500 – 23 April 1546) was a Spanish explorer who led a failed attempt to colonize the Philippines in 1544, attempting to assert Spanish control there under the terms of the treaties of Tordesillas and Zaragoza. Unable to feed his men through barter, raiding, or farming and unable to request resupply from New Spain due to poor knowledge of the Pacific's winds and currents, Villalobos abandoned his mission and fled to the Portuguese-held Moluccas, where he died in prison. He is chiefly remembered for some sources crediting him with naming Leyte and Samar "Las Islas Filipinas" in 1543 in honor of the Spanish crown prince Philip (later King Philip II). The name was later extended across the entire Philippine Archipelago and its nation. (Other sources credit the name to one of his captains, Bernardo de la Torre.)
The Battle of Leyte (Filipino: Labanan sa Leyte; Waray: Gubat ha Leyte; Japanese: レイテの戦い) in the Pacific campaign of World War II was the amphibious invasion of the island of Leyte in the Philippines by American forces and Filipino guerrillas under the overall command of General Douglas MacArthur, who fought against the Imperial Japanese Army in the Philippines led by General Tomoyuki Yamashita. The operation, codenamed King Two, launched the Philippines campaign of 1944–45 for the recapture and liberation of the entire Philippine Archipelago and to end almost three years of Japanese occupation.
The Battle of Bataan (Filipino: Labanan sa Bataan; 7 January – 9 April 1942) was fought by the United States and the Philippine Commonwealth against the Empire of Japan during World War II. The battle represented the most intense phase of the Japanese invasion of the Philippines during World War II. In January 1942, forces of the Imperial Japanese Army and Navy invaded Luzon along with several islands in the Philippine Archipelago after the bombing of the American naval base at Pearl Harbor.
The commander in chief of the U.S. and Filipino forces in the islands, General Douglas MacArthur, consolidated all of his Luzon-based units on the Bataan Peninsula to fight against the Japanese army. By this time, the Japanese controlled nearly all of Southeast Asia. The Bataan Peninsula and the island of Corregidor were the only remaining Allied strongholds in the region.