Original: The Guadalcanal Campaign, also known as the Battle of Guadalcanal, was fought between August 7, 1942 and February 9, 1943 on and around the island of Guadalcanal in the Pacific theater of World War II.
Simplified: The Guadalcanal Campaign, also known as the Battle of Guadalcanal, was fought between August 7, 1942, and February 9, 1943, in the Pacific theatre of World War II.