It was a party to die for.

Over 20,000 partygoers from across Europe swarmed an illegal rave on a “dangerous” French military site that is reportedly littered with active explosive devices.

The festival saw hordes of death-defying dancers flock to the military base in the central French city of Bourges beginning on Thursday, which has been deemed “very dangerous because of the unexploded ordnance it may contain,” French military authorities told the AFP.

Bourges Teknival has drawn 20,000 partygoers to a military field in France that could contain old yet active explosive devices.…