Operation Sea Lion (wargame)

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Operation Sea Lion was a major wargame conducted at Royal Military Academy Sandhurst in 1974. Its aim was to find out what might have happened had Nazi Germany launched Operation Sea Lion, their planned invasion of southeast England during World War II, in September 1940. The wargame was organised by the Daily Telegraph and Dr Paddy Griffith from the Department of War Studies at Sandhurst. The British umpires were Air Chief Marshal Christopher Foxley-Norris, Rear Admiral Teddy Gueritz and Major General Glyn Gilbert. The German umpires were General Adolf Galland (air), Admiral Friedrich Ruge (naval) and General Heinrich Trettner (land). After the game's conclusion, all the umpires unanimously concluded that the invasion was a devastating defeat for the German invasion force.