During WW2 began the era of the aircraft carrier. It did in fact replace the battleship. Now aircraft carriers are big expensive targets. Useful in brushfire fights.… but when the ship really hits the fan, it will become a target. Submarines. The current champions.
“Now aircraft carriers are big expensive targets.”
That nobody can hit.
They are virtually invulnerable from the air. The Aegis picket is just too good.
And to be vulnerable from below, somebody has to figure out how to best our Virginia class subs. And that’s not on the near-term horizon.