Churchill's Darkest Decision 2009 How and why Winston Churchill ordered the Royal Navy to attack the French fleet in July 1940.
Overview: The background to, events of and consequences of the Battle of Mers-El-Kebir on 3 July 1940. In that battle, Royal Navy ships fired on the French Fleet in order to prevent it from falling into German hands. A French battleship was sunk and several other ships damaged. Nearly 1,300 French sailors were killed.