Air France (French pronunciation: ?[??? f??~s]; formally Société Air France, S.A.), stylized as AIRFRANCE, is the French flag carrier headquartered in Tremblay-en-France, (north of Paris). It is a subsidiary of the Air France–KLM Group and a founding member of the SkyTeam global airline alliance. As of 2013 Air France serves 36 destinations in France and operates worldwide scheduled passenger and cargo services to 168 destinations in 93 countries (including overseas departments and territories of France) and also carried 46,803,000 passengers in 2015. The airlines global hub is at Charles de Gaulle Airport with Orly Airport. Air Frances corporate headquarters, previously in Montparnasse, Paris, are located on the grounds of Charles de Gaulle Airport, north of Paris. 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 Berlins 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 Frances primary national flag carrier for seven decades prior to its 2003 merger with KLM. Between April 2001 and March 2002, the airline carried 43.3 million passengers and had a total revenue of €12.53bn. In November 2004, Air France ranked as the largest European airline with 25.5% total market share, and was the largest airline in the world in terms of operating revenue.