“It’s me that’s flying those drones. All of them,” Fey revealed.

Some of the executions were filmed by Russian forces themselves, while others were observed by Ukrainian drones hovering above.

Israel's military says about 400 missiles and drones have been launched at the country from Yemen since then, most of which have been shot down.

Ukraine's military said Russia launched 65 drones and missiles across the country overnight, with most shot down.

So, possible infiltration strategies include broadcasting messages through loudspeakers or using drones to drop leaflets.