This will make a yuge geopolitical difference.
From the linked article (well worth reading in full):
Israel is accelerating deployment of the revolutionary Iron Beam high-energy laser system for intercepting aerial threats. It is capable of unlimited interceptions, each costing only a few dollars.
Developed by Rafael Advanced Defense Systems, the prime contractor, in partnership with Israel’s Defense Ministry, Iron Beam will be integrated into Israel’s multi-layered defense network. It will operate alongside Iron Dome, the world’s most deployed air defense system that intercepts short- to medium-range threats, the David’s Sling medium- to long-range defense system, as well as the Arrow-2 and Arrow-3 anti-ballistic missile systems.
Iron Beam will revolutionize air defense by providing an instantaneous, high-energy laser interception capability at the speed of light. This means there is virtually no delay between detection and impact, making it significantly faster than kinetic interceptors such as the Tamir missile used by Iron Dome.
Iron Dome remains a backup. Together, they create a stronger, more efficient defense network.
It will also “flip” the economic equation by reversing the long-standing situation in which Israel’s enemies fire thousands of cheap rockets as Israel invests much more in intercepting them.
“Cheap, effective interception of many threats, sparing interceptors, and decreasing the load on existing air defense systems, are part of Iron Beam’s added value," an official said. “We are examining the installation of this system in all types of platforms: ground, air and sea."