Asiatic Pacific Campaign Hat Pin
The Asiatic-Pacific Campaign Medal (ACPM) was awarded to any member of the United States Armed Forces who service in the Pacific Theater during World War II. It was created on November 6th, 1942 by President Franklin D. Roosevelt's Executive Order 9265. Additional awards of the medal are represented by a bronze star device worn on the award. There are 21 Army and 48 Navy and Marine Corps approved campaigns for this medal. An Arrowhead device is also authorized for campaigns which involved amphibious landings and certain sailors are authorized to wear the Fleet Marine Force device for combat operations.
While the award is issued for those who served from 1941 to 1945, the full sized medal wasn't created until 1947. The first recipient of the full sized medal was General Douglas MacArthur. The award may often be listed as the Asiatic-Pacific Theater ribbon on a serviceman's DD-214.