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As perfected by the French army.

Via Daily Mail:

Britons should ‘run away as far as possible’ if Islamic State terrorists hit London, the country’s most senior counter-terror police officer said today.

Scotland Yard Assistant Commissioner Mark Rowley said people should flee rather than ducking down where they are – and then hide once they cannot flee any further from the attack.

He said it was important for people to call police once they are in a safer location, adding that following the ‘run, hide, tell’ advice could help save lives if terrorists try to cause mass casualties.