Guadalcanal
Guadalcanal, an island in the Solomons archipelago in the South Pacific, was the scene of the first U.S. offensive land action against Japan in World War II. American Marines landed on Guadalcanal in August 1942 and were later supported by U.S. Army troops. The Japanese defended Guadalcanal tenaciously, and the Americans did not declare the island secure until February 1943, and the victory was a turning point in the Pacific War. Numerous naval battles occurred off the shores of Guadalcanal as well.