The U.S. is facing swarms of Iran's inexpensive drones, which have proven to be resistant to the Pentagon's traditional weaponry. Instead of heavy systems used by the military, these drones are powered by mass-produced and often-autonomous drones. This war will require new strategy and technology, and Ukraine has been taught a new playbook for modern warfare. The Pentagon's approach to Iran has been challenged by cheap, scrappy Iranian drones. The U.K. and its regional allies are using Ukraine's drone interceptors and techniques to combat Iran's cheap drones. However, there are not enough expensive missiles to take down the cheap drones, and the U.P.