Russian government ordering up an array of measures to fend off threats from the ground, sea or air. Russian President Vladimir Putin has made security of the tournament his top priority. Separatists could be eager to target the World Cup to hurt Russia. Law enforcement agencies have spent years preparing for the event. Russia has introduced a chipped Fan ID to attend the World Cup matches. Russian authorities have tightened air traffic rules. Russia has expanding no-flight zones near the World Cup host cities. Federal Security Service has deployed anti-drone equipment in all 11 host cities. The Russian military will protect World Cup sites with an array of air defence missiles.