The Purple Heart recipient was motivated to join the Marine Corps after the bombing of Pearl Harbor on Dec. 7, 1941.
On July 2, 1937, approval was granted for 24-hour guarding of the tomb — even in situations of hazardous weather conditions. The change came following efforts from the American Legion for nonstop oversight.
O'Neill would only play one game in the big leagues before eventually sacrificing all on Iwo Jima.
By Jon Simkins
A three-day Cold War clash in the Caribbean had far-reaching impacts on American joint operations.
By Sharon Tosi Lacey