- Period:
- Second World War (1939-1945)
- Rank:
- Temporary Lieutenant
- Unit:
- H.M.S. ML 307 (ML 307), Royal Navy
- Awarded on:
- May 21st, 1942
- Awarded for:
- Operation Chariot
Lt. Wallis struck an underwater obstacle and became grounded; enemy fire now concentrated on the stranded vessel. Lt. Wallis skillfully managed to extricate ML 307 from its perch and, at Capt. Bradley’s direction, began engaging the German guns and searchlights along the quays and jetties that were threatening to defeat the raid. As the waters around the Old Entrance were choked with burning and disabled MLs, wounded men and flying lead the boats could not approach