617 Squadron of the Royal Air Force who took part in Operation Chastise, the "Dambusters" raid of 1943, as a rear gunner.

[2] During the Second World War, Tees joined the Royal Air Force in 1941 with the service number 1332270.

Tees should have been the nose gunner but had changed places with Sergeant Harry Strange in the rear turret.

Tees managed to escape from the rear turret and was found unconscious and badly burnt on the ground and was taken prisoner of war.

[4][7][8] In 1967 he took part in the Dam Busters reunion held on the 24th anniversary of the raid at Scampton in Lincolnshire.