It may be a long way from any battlefield but the 2024 Paris Olympics is preparing for the threat of a drone attack with what one official calls "unrivalled" measures.
Fear of a terror attack has haunted every Olympic host nation for half a century since Palestinian gunmen took members of the Israeli team hostage during the 1972 Olympics in Munich.
The last terror act at an Olympics was in Atlanta in 1996 when a pipe bomb exploded as revellers enjoyed a rock concert. Two people were killed and more than 100 injured in the attack, for which a US extremist was jailed.
But the use of civilian drones by armed and criminal groups in recent years poses a new and high-tech nightmare scenario for Olympic organisers. "It's really something we are taking very seriously, we've been working on it for a long time," a senior French official, who spoke on condition of anonymity, told AFP.