The Battle of Guadalcanal was the
first
major offensive and decisive victory for the Allies in the pacific
theater. The battle was fought on the
Solomon islands from August 1942 to February 1943.
Only the United States and Japan were involved in this conflict, the allies won this battle and only lost about 2,000 troops of about 60,000 deployed. After this battle, Japan had no realistic hope of withstanding the counteroffensive of a powerful U.S. army.