As Russian drone attacks increase, Ukraine orders $72 million on interceptor drones and other tech to strengthen air defenses.

The Washington-based Institute for the Study of War noted that cooperation with China has allowed Russia to bypass Western sanctions on imports of electronics for drone production. Ukraine’s military intelligence estimates that Russia receives up to 65% of components for its Geran drones from China. Beijing rejects the claims.

The relentless strikes rely on a drone that costs as little as $50,000 to make—about as a BMW M Sport costs in India. The cost to shoot one down? Often more than a million dollars. As James Black of the RAND Corporation put it,