Britain’s outgoing army chief has warned that attempts to impose a no-fly zone over Syria would be unsuccessful without establishing ground control

Britain's outgoing army chief has warned that attempts to impose a no-fly zone over Syria would be unsuccessful without establishing ground control, in an interview published in Thursday's Daily Telegraph.
  
"If you wanted to have the material impact on the Syrian regime's calculations that some people seek, a no-fly zone per se is insufficient,” general David Richards said. "You have to be able, as we did successfully in Libya, to hit ground targets. You have to take out their air defenses."
  
Richards stressed that a "ground control zone" would need to be established and that tanks and armored personnel carriers would have to be "taken out". "If you want to have the material effect that people seek you have to be able to hit ground targets and so you would be going to war if that is what you want to do," he added.