Greg Mello, director of the Los Alamos Study Group, which studies the US nuclear arsenal, stated that none of the current US or other countries’ missile defense systems are capable of countering Russian non-ballistic nuclear weapons.
According to him, the US initiative to create the Golden Dome system is technically unfeasible. Mello noted that Russia possesses weapons such as the Poseidon underwater drone, hypersonic missiles, and cruise missiles, which are specifically designed to overcome missile defense systems.
He emphasized that instead of fanciful projects like Golden Dome, real arms control measures are needed to ensure mutual security.
Hyper sonic missiles are interceptable. Drone interceptable. Cruise missle are interceptable.
That being said the US is way to large to cover since the batteries have to be right on site for the best chance of interception and its way to risky to rely on interception. Also any golden dome can be overwhelmed with a mix of real and fakes like we see happening in Ukraine and Isreal. Diplomacy + a non retarded leader + international trade + mutually assured destruction should be enough to prevent war.