Hampshire played a crucial role in both World Wars due to the large Royal Navy naval base at Portsmouth, the army camp at Aldershot, and the military Netley Hospital on Southampton Water, as well as its proximity to the army training ranges on Salisbury Plain and the Isle of Purbeck. Supermarine, the designers of the Spitfire and other military aircraft, were based in Southampton, which led to severe bombing of the city in World War 2. Aldershot remains one of the British Army's main permanent camps. Farnborough is a major centre for the aviation industry.