Northwest Airlines Corporation (NWA Corp.) is the indirect parent corporation of Northwest Airlines, Inc. (Northwest), which is engaged in the business of transporting passengers and cargo. Northwest focuses on the operation of a global airline network through its assets that include domestic hubs at Detroit, Minneapolis/St. Paul and Memphis; a Pacific route system with a hub in Tokyo; transatlantic joint venture with KLM Royal Dutch Airlines (KLM), which operates through a hub in Amsterdam; a domestic and international alliance with Continental Airlines, Inc. (Continental) and Delta Air Lines, Inc. (Delta); membership in SkyTeam, a global airline alliance with KLM, Continental, Delta, Air France, Alitalia, Aeromexico, CSA Czech Airlines, Korean Air and Aeroflot; agreements with three domestic regional carriers, including Pinnacle Airlines, Inc. and Mesaba Aviation, Inc., each of which operates as Northwest Airlink, and Compass Airlines, Inc., a wholly owned subsidiary.