263 Squadron RAF, killed on the 8 June 1940, when the aircraft carrier HMS Glorious was sunk while evacuating 263 Squadron and 46 Squadron from the Battle of Norway) when the Second World War began, with many others joining thereafter.
The loss of 263 Squadron RAF on June 8th, 1940, during the evacuation of HMS Glorious from the Battle of Norway is a significant historical event that led to many others joining the squadron later.