I am not sure military supremacy goes hand in hand with economic advantage, eg german and japan are great examples till very recently. That aside, fundamentall

I am not sure military supremacy goes hand in hand with economic advantage, eg german and japan are great examples till very recently. That aside, fundamentally those weapons come in play against whom ? Obviously not most of nato Europe Whom are ideological allies or dependents. can’t be against Russian or China because they have nuclear weapons or even North Korea, India Pakistan. So that leaves South America and the Middle East parts of asia. I guess (and it’s off the top of my head) the value of achieving conventional military supremacy maybe an over kill (no pun) against moderate military powers and not so advantageous against nuclear powers. But at the end I’m not a renowned military strategist, i just observe that German and japan’s influence on the world stage is not backed by a massive conventional military supremacy