"That said 2022/2023 window, AGAIN THAT'S RIGHT NOW, there's essentially nothing US can do to bolster posture in that timeframe."

Simply moving most of our attack subs into the theater after full weapons loadouts would massively if "silently" bolster our posture.

We could also shift surface assets there. We're not going to be able to build many more Standard missiles in a 2.5 month timeframe, but we could move a lot of Arleigh Burke class destroyers into the theater and extending all the way to Guam. We might have some anti-missile equipment we could move to that island, don't know how much the war in the Ukraine has drained those.

That's just off the top of my head before I go to sleep, I'm sure there's lots ore.