KLM Royal Dutch Airlines is the world's oldest international airline, and it's now part of Europe's largest. Through its partnerships (including a long-time codeshare agreement with Northwest), the airline provides passenger and cargo services to some 350 destinations in almost 75 countries. With its primary hub located in Amsterdam, the airline carries nearly 16 million passengers and about 490,000 tons of cargo annually. KLM operates a fleet of more than 210 aircraft, mostly Boeings. KLM also operates regional carrier KLM cityhopper, but sold its buzz unit in an effort to boost lagging revenues. Hope may be on the horizon as KLM merged with European competitor Air France in 2004