Air France was formed on 7 October 1933 from a merger of Air Orient, Air Union, Compagnie Générale Aéropostale, Compagnie Internationale de Navigation Aérienne (CIDNA), and Société Générale de Transport Aérien (SGTA). During the Cold War, from 1950 until 1990, it was one of the three main Allied scheduled airlines operating in Germany at West Berlin's Tempelhof and Tegel airports. In 1990, it acquired the operations of French domestic carrier Air Inter and international rival UTA – Union de Transports Aériens. It served as France's primary national flag carrier for seven decades prior to its 2003 merger with KLM.