The Battle of Luzon was a land battle of the Pacific Theater of Operations of World War II by the Allied forces of the U.S., its colony the Philippines, and allies against forces of the Empire of Japan. The battle resulted in a U.S. and Filipino victory. The Allies had taken control of all strategically and economically important locations of Luzon by March 1945, although pockets of Japanese resistance held out in the mountains until the unconditional surrender of Japan. While not the highest in U.S. casualties, it is the highest net casualty battle U.S. forces fought in World War II, with 192,000 to 217,000 Japanese combatants dead, 8,000 American combatants killed, and over 150,000 Filipinos, overwhelmingly civilians who were murdered by Japanese forces, mainly during the Manila massacre of February 1945.

Walter Krueger was an American soldier and general officer in the first half of the 20th century. He commanded the Sixth United States Army in the South West Pacific Area during World War II. He rose from the rank of private to general in the United States Army.