What to do in a terror attack - level 3

This article talks about that French Authorities Have video published instructions on how to react in the event of a horror attack similar to Those Which killed 130 and injured in November 2015. Hundreds The Simple step-by-step guide Gives advice on the dos and don'ts in case of an armed attack and you have-been circulated on social media websites.
 With this video has again demonstrated once again  resilience to not only counter the threat but fear ITS Civilians prepared to survive any possible situation.

Difficult words: escape (I run away) trapped (stuck, unable to leave), alert (to warn), close up commercial (to end), resilience (strength), threat (danger), counter (to fight back).