A high-tech factory in central Russia has created a new, deadly force to attack Ukraine: A small number of highly destructive thermobaric drones surrounded by huge swarms of cheap foam decoys.

At a secretive factory in Russia's central grasslands, engineers are manufacturing hundreds of decoy drones meant to overwhelm Ukrainian defenses as they try to protect against a horrific new weapon,

At a secretive factory in Russia's central grasslands, engineers are manufacturing hundreds of decoy drones meant to overwhelm Ukrainian defences as they try to protect against a horrific new weapon,