- Period:
- Second World War (1939-1945)
- Rank:
- Temporary Major
- Unit:
- 55th Field Regiment RA, British Army
- Awarded on:
- September 25th, 1945
- Awarded for:
- Operation Market Garden
"For extraordinary heroism in connection with military operations against an armed enemy in action against enemy forces on 20 and 21 September 1944. As forward observation officer for the 55th Field Regiment in support of the 504th United States Parachute Regiment during crossing of the Waal west of Nijmegen Bridge, Captain Riddell established his tank as a relay station on the south bank. Constantly subjected to heavy enemy fire, he maintained his position and passed back vital fire data which resulted in excellent support for the forward units."
Headquarters: European Theater of Operations, U.S. Army, General Orders No. 264