On what date did XXX end?
Attack on Mers-el-Kébir
The Attack on Mers-el-Kébir, part of Operation Catapult and also known as the Battle of Mers-el-Kébir, was a British naval bombardment of the French Navy (Marine Nationale) at its base at Mers-el-Kébir on the coast of what was then French Algeria on 3 July 1940.
3 July 1940