The President of the United States of America, authorized by Act of Congress, July 2, 1926, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Distinguished Flying Cross to Lieutenant Colonel (Air Corps) John Henry Diehl, Jr. (ASN: 0-427313), United States Army Air Forces, for extraordinary achievement while participating in aerial flight while serving as Pilot of a B-24 Heavy Bomber in the 44th Bombardment Group (H), NINTH Air Force, on twenty bombardment missions over enemy occupied Continental Europe during World War II. Displaying great courage and skill, Lieutenant Colonel Diehl has materially aided in the success of each of the twenty missions and his actions are an inspiring example for his fellow flyers. The courage, coolness and skill displayed by Lieutenant Colonel Diehl on all these occasions reflect the highest credit upon himself and the Armed Forces of the United States.