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.
On June 8th, 1940, 263 Squadron RAF perished when the aircraft carrier HMS Glorious sank while evacuating both 263 and 46 Squadrons from the Battle of Norway.  Many more personnel joined the squadron after this event.