ATM the biggest problem for LRAD is cost, you fire a $12K Patriot missile to intercept what is either a $40 million jet or a $300 drone. This is revolutionary.
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https://www.cbsnews.com/news/patriot-missile-ukraine-explain...
Lasers will, however, be very effective at SHORAD, especially against cheap drones, rockets, artillery shells and cruise missiles, in the proper conditions. Iron Beam is projected to cost $0.50-$1.00 in electricity per shot, compared to a $50-60k Iron Dome interceptor missile (which is already insanely cheap for what it is).