150604-N-GI544-029 PEARL HARBOR (June 04, 2015) Daniel A. Martinez, National Park Service chief historian, speaks during a commemoration of the 73rd anniversary of the Battle of Midway at Station Hypo at Joint Base Pearl Harbor-Hickam. The Battle of Midway, which took place June 4-7, 1942, was a decisive victory for the U.S. Navy and is regarded as the turning point of the war in the Pacific. (U.S. Navy photo by Mass Communication Specialist Class 2nd Laurie Dexter/Released)