His wartime history highlights notable achievements:
Wartime Operations and Gallantry
• The Miracle Return (June 1943): While serving as a Sergeant (Service No. 1500040), Kidger was part of a Handley Page Halifax II crew (Serial JB792) with No. 51 Squadron RAF. During a bombing run on the night of 12–13 June 1943, their aircraft was severely hit by enemy anti-aircraft flak. Despite severe damage, the crew successfully pressed on to bomb the target and managed to fly the crippled aircraft all the way back to base safely.
• Commissioning: Following his survival and proven capability under fire, he was commissioned from Sergeant to the rank of Pilot Officer (Service No. 155899) on 19 August 1943.
• Distinguished Flying Cross (DFC): For his persistent bravery and operational execution, Pilot Officer Kidger was awarded the Distinguished Flying Cross (DFC), officially gazetted on 21 January 1944. His citation lauded him general recognition "For gallantry and devotion to duty in the execution of air operations."

