Air France and KLM represent years of French and Dutch airline tradition, but Air France-KLM represents a first: a holding company made up of two national airlines. Together, Air France-KLM is the second-largest airline in Europe after Deutsche Lufthansa and one of the largest in the world. Through its operating units, the company serves more than 315 destinations in about 115 countries with a fleet of some 540 aircraft. Air France and KLM operate independently from hubs in Paris and Amsterdam, but have coordinated their operations, both as sister companies and as members of the SkyTeam alliance, which also includes Alitalia, Delta Air Lines, and Korean Air Lines.