The British War Dog Training School at Potters Bar developed a program to train dogs for parachute operations. These "paradogs" were selected for calm temperament and trained to jump from aircraft wearing specially designed harnesses and parachutes. They would be dropped alongside paratroopers and serve in various roles behind enemy lines.
The most famous paradog was Rob, a black-and-white collie who made over 20 parachute jumps during the war, serving with the SAS in North Africa and Italy. He was awarded the Dickin Medal in 1945 for his service. Another notable paradog, Bing (originally named Brian), parachuted into Normandy on D-Day with the 13th Parachute Battalion and served as a scout dog detecting enemy positions.
Training involved gradually acclimating dogs to aircraft noise, then to short drops from towers, and finally to actual jumps. The dogs reportedly adapted well, with some seeming to enjoy the experience. The program proved that dogs could serve effectively in the most demanding airborne operations.