It helps if you actually do this rather than just saying you do this and then build them actually worse than before but tell everyone they are better.

Where does Influenza "go" in between flu seasons? Is it just slowly working its way around the planet and just takes about a year to make the journey? or does it basically go infect something else until conditions are ideal for us to get infected again? Or is it there the whole time usually and we are just more prone to getting it at certain times of the year?

It's a strait, they would normally be unable to refuse passage to a ship transiting from one location to the other in convention with normal international navigation law. China considers the Taiwan strait to be theirs, we drive through that all the time to annoy them anyways. https://digital-commons.usnwc.edu/cgi/viewcontent.cgi?article=2943&context=ils#:~:text=Straits%20used%20for%20International%20Navigation,of%20the%20high%20seas%2FEEZ.

The U.S. never signed the Montreux convention. We go along with them because turkey is a NATO state, but we don't have to. The main reason you would never see a carrier in there is we don't need to. The ones in the Mediterranean would not have appreciably less fighter range to cover the area one in the black sea would cover, and would have more room to work anyways.