The D-Day landings of June 6 1944 were the largest amphibious landing in the history of warfare, and are famed as a major turning point towards Allied victory. But they weren’t without planning and practice. In late April 1944, the Allies launched one of their trial runs, Exercise Tiger, off Slapton Sands in Devon. The aim was a closely choreographed landing, the result was a disaster. Hear Dr Harry Bennett from the University of Plymouth discussing the players in this trial run, and how it became the Battle of Lyme Bay.