Patriot missile systems, costing a million dollars per missile, are experiencing "leakage" as cheap Iranian drones (costing $20,000-$50,000) are getting through.

Iran bypassed the Iron Dome using wooden stealth drones.

The drones that came over in the first four weeks, those waves every morning were basically carbon fiber wings with lawnmower engines on them and and very inexpensive to make about $35,000.

Iran has fired off more than 2,000 one-way drones since the United States and Mistral started attacking it on Saturday.

Iran is producing drones for about $30,000 a piece.

If defense systems have to shoot three, four, or five Patriot interceptors to knock down one drone, the cost becomes 15, 20, or $30 million per $20,000 drone.