Battle of Guam (1941)

Battle of Guam
	Part of the Pacific Theater of World War II
	; A Japanese illustration of the main landing on Guam by the 144th Infantry Regiment, South Seas Detachment. Painting by Kohei Ezaki.
Date	December 8–10, 1941
Location	Guam, Mariana Islands, Pacific Ocean
Result	Japanese victory
Belligerents
United States	Japan
Commanders and leaders
George J. McMillin	Tomitaro Horii
Strength
Land:; 547 marines and sailors; Sea:; 1 minesweeper; 2 patrol boats; 1 freighter	Land:; 5,900 infantry and marines; Sea:; 4 heavy cruisers; 4 destroyers; 2 gunboats; 6 submarine chasers; 2 minesweepers; 2 tenders; Air:; unknown air forces
Casualties and losses
17 killed; 35 wounded; 406 captured; 1 minesweeper scuttled; 1 patrol boat scuttled; 1 patrol boat captured; 1 freighter damaged	1 killed; 6 wounded; 1 aircraft destroyed
	13 American civilians and five POWs were killed by Japanese forces during the battle.; Three Japanese infiltrators were captured by American forces but were released upon the surrender of the island.;

The Battle of Guam was an engagement during the Pacific War in World War II, and took place from 8 December to 10 December 1941 on Guam in the Mariana Islands between Japan and the United States. The American garrison was defeated by Japanese forces on 10 December, which resulted in an occupation until the Second Battle of Guam in 1944.