September 20, 1943 303rd BG: A mission to Kerlin-Bastard, France was scrubbed.
September 20, 1944 STRATEGIC OPERATIONS8th AF: 679 P-38s, P-47s and P-51s are dispatched to support the First Allied Airborne Army in the Arnhem and Nijmegen areas of the Netherlands; 644 aircraft strafe and bomb ground targets; intense light flak claims 1 P-51 plus 1 P-38, 1 P-47 and 1 P-51 damaged beyond repair and 3 P-47s and 4 P-51s damaged; air attacks aid ground troops in taking valuable bridges in the area and in the advance toward Arnhem.