re: Israel has successfully tested the new “Iron Beam” laser interception system.

The directed energy based laser is not the issue. That's actually relatively easy to create. It's the tracking algorithms and data used to direct the energy to a single point, accurate tracking speed and amount of mass to impact, plus being able to move that laser at 180° as it tracks at speeds of up to one second across the entire arc, creating G forces of up to 8G on the mass of the optical systems. This is very difficult and required extensive new technologies in optics design to maintain the 99.99% accuracy of the optics.