MUNICH, GERMANY - SEPTEMBER 10:  Planes of German airliner Lufthansa seen during a strike by Lufthansa pilots at Munich Airport on September 10, 2014 in Munich, Germany. Today's strike, which is to last from 10am to 6pm and affects over 200 flights, is the third strike by Lufthansa and Germanwings pilots within the last three weeks. The 5,400 pilots of Lufthansa, Germanwings and Lufthansa Cargo are in a dispute with Lufthansa over their early retirement benefits.  (Photo by Alexander Hassenstein/Getty Images)