Oh definitely, they can’t all be deployed at once - but the ability to rotate them out means a sustained presence that nobody else can achieve. And the point is really more about the organization structure that supports those carriers and their accompanying battle groups - the US can control any part of the ocean anywhere in the world, for as long as they want. That kind of force projection is hard to compete with.
Um, maybe I’m misunderstanding, but you’re storing keys in git repositories which are where…?
And remember, if you haven’t tested your backups then you don’t have backups!