The Swiss Air Force is the air component of the Swiss Armed Forces established on July 31 1914 as part of the Army and as of January 1966 an independent service. In peacetime Dübendorf is the operational Air Force HQ. 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.