Does an Azur Lane port need international waters?

What would be the advantage of putting the port in international waters?

The fictional collapse of states calls into question whether ordinary maritime borders still determine where the port can be based.

The distinction between national and international waters assumes functioning states and meaningful borders. Azur Lane's timeline is described here as one in which many nations have been destroyed and humanity is declining. On that premise, familiar territorial categories may no longer determine the base's position. No particular location or advantage is established.