How many people do you need to shut down train and air traffic in a highly industrialized/globalized and totally efficient country like Germany?

A couple hundred locomotive engineers and a couple dozen airline pilots. And two unions, of course.

“As well as demanding a 10 percent salary increase, the union is demanding the reinstatement of a benefit that enabled pilots to retire early at 60 on partial pay. Lufthansa pilots can currently take paid early retirement from the age of 55, however the airline wants all fit pilots to keep flying until 65.”