Hellfire missiles from predator drones is kill em all and let god sort them out.
There's a straight to VHS movie about the development of the bradley fighting vehicle (movie called pentagon wars irrc). General #1 wants an APC, general #2 wants it to be a tank, general #3 wants a bigger gun, general #1 is wondering why his APC can carry only 3 people along with the tank rounds, there were several attempts to make it submersible, there was a time they were using materials for the outside of the vehicle that caught fire when hit with small arms, there was a time when it drove about 2mp/h, etc etc etc. The list goes on. It cost them like 6 billion and 2 decades to develop a vehicle that isn't really a tank or an APC. The first design was made in 1958, the first bradley was used in 1983.