General Sir David Richards: Afghanistan will take 40 years - London Times

“I believe that the UK will be committed to Afghanistan in some manner — development, governance, security sector reform — for the next 30 to 40 years,” he said.
Interview: General Sir David Richards - London Times
Afghan mission 'could last 40 years' - independent

وزیر دفاع آلمان:آلمان ممکن تا ده سال دیگر در افغانستان بماند.
NATO Chief Seeks More Troops For Afghanistan