France and the Netherlands have pledged as much as 11 billion euros to save Air France-KLM after the airline warned of an impending cash crunch and the possibility it wouldn't survive the global pandemic without state help. Germany is preparing to take a stake in Deutsche Lufthansa AG as part of an aid program to help the carrier weather the slump in demand, according to people familiar with the matter. The total package of loans, credit guarantees and equity that could be worth as much as 10 billion euros.