The Swiss Air Force (; ; ; ) is the air component of the Swiss Armed Forces, established on 31 July 1914 as a part of the army and in October 1936 as an independent service. In peacetime, Dübendorf is the operational air force headquarters. The Swiss Air Force operates from several fixed bases (see current status) but its personnel are also trained to carry out air operations from temporary highway airstrips. In case of crisis or war, several stretches of road are specially prepared for this option. History Early years The first military aviation in Switzerland took the form of balloon transport, pioneered by Swiss balloonist Eduard Spelterini, but by 1914 there was still little official support for an air corps. The outbreak of World War I changed opinions drastically and cavalry officer Theodor Real was charged with forming a flying corps. He commandeered three civilian aircraft at Bern's airfield and set about training the initial nine pilots at a makeshift airfield close to Wankdorf Stadium, later moving to a permanent home at Dübendorf. Switzerland remained neutral and isolated during the conflict, and the air corps confined its activities to training and exercises, reconnaissance and patrol. It was only with the worsening international situation in the 1930s that an effective air force was established at great cost, with up-to-date Messerschmitt Bf 109 and Morane-Saulnier D‐3800 fighters ordered from Germany, Italy and France respectively (the Moranes were licence-built in Switzerland). The Swiss Air Force as an autonomous military service was created in October 1936. World War II Although Switzerland remained neutral throughout World War II, it had to deal with numerous violations of its airspace by combatants from both sides – initially by German aircraft, especially during their invasion of France in 1940. Zealous Swiss pilots attacked and shot down eleven German aircraft, losing two of their own, before a threatening memorandum from the German leadership forced General Guisan to forbid air combat above Swiss territory. Later in the war, the Allied bomber offensive sometimes took US or British bombers into Swiss airspace, either damaged craft seeking safe haven or even on occasions bombing Swiss cities by accident. Swiss aircraft would attempt to intercept individual aircraft and force them to land, interning the crews. Only one further Swiss pilot was killed during the war, shot down by a US fighter in September 1944. From September red and white neutrality bands