This seems a losing battle in a real war with a capable enemy. The attacker has to be right only once and can try multiple times whereas the defender has to be right every time.
I should have been more specific that my comment was about defending a super expensive asset like an aircraft carrier. I am pretty sure itβs cheaper to destroy an aircraft carrier vs building it. It also takes very long time to replace one. In world war 2 it showed that cheaper mass produced weapons usually were superior to expensive super high tech weapons in the long run.
