They constantly faced the danger of being hit by anti-aircraft fire, enemy fighters, or suffering mechanical or other failures which would intensify the risks of carrying this powerful missile. Flying 1500 miles over open water to the coast of Japan, they manned their assigned positions and crossed the island of Shikoku and the Inland Sea. Lieutenant Beser was the Radar Countermeasures Officer for a combat crew of the B-29 aircraft of the 393d Bombardment Squadron, 509th Composite Group, TWENTIETH Air Force, which flew from a base in the Marianas Islands to drop on the city of Hiroshima, Japan, the first atomic bomb to be used in warfare. The President of the United States of America, authorized by Act of Congress July 9, 1918, takes pleasure in presenting the Silver Star to First Lieutenant (Air Corps) Jacob Beser (ASN: 0-66), United States Army Air Forces, for gallantry in action while engaged in aerial flight against the Japanese Empire on 6 August 1945.

His Silver Star citation: Awarded for actions during World War II He was the only man to be on both A-bomb dropping aircraft. Last Known Activity He was the radar countermeasures officer on Enola Gay when it dropped the atomic bomb on Hiroshima and on Bockscar when it dropped its bomb on Nagasaki.