Which group of islands was the scene on intense fighting during World War 2?

The Pacific Islands, particularly the Solomon Islands, the Mariana Islands, and the Aleutian Islands, were the scenes of intense fighting during World War II. Notable battles, such as the Battle of Guadalcanal and the Battle of Iwo Jima, were pivotal in the Pacific Theater. These islands served as strategic locations for both Allied and Japanese forces, leading to significant military engagements and heavy casualties.