Kuna bwana alitwambia umasikini ndio sababu kuu ya warusi kuwa na uhaba wa air craft carrier.
Russia ameamua kutengeneza chanjo ya tatizo,
Russia developed missiles that can kill aircraft carriers, which the US has no defense against.
Even NATO admitted that the US Navy isn't safe anywhere within range of these missiles.This explains why you didn't see an American aircraft carrier in the Baltic during the recent BALTOPS event.
The closest the US dared to get with a carrier is the Adriatic Sea. Aircraft carriers are insanely expensive to build and operate, and they've been obsoleted by missiles that cost a tiny tiny fraction of what a carrier does.
China develops "carrier killers" as well.If the US thought in any way that it could achieve a no-fly zone over Ukraine or the Black Sea, it would have already done it, but of course they cannot.
You see, while US/NATO was busy destroying Libya, Syria, Iraq, etc., with their weapons, Russia was busy studying how to destroy US/NATO weapons.
Nuclear submarines are about the only area left where the US still maintains and an advantage, and even that is shrinkingly marginal.