Then move troops there. The European NATO members already outspend Russia in terms of military investments. Russia can't even take over Ukraine, a country that's not even in NATO and hasn't even had any modern military equipment for a very long time. Hell, they're getting hand me downs from countries like Germany, equipment that's decades old, isn't state of the art, and needs repairs, and they're still keeping Russia at bay. Now there's articles about Russia depleting its own tank stocks and shit, not being able to sustain even a war with Ukraine, and we're supposed to believe that Russia will somehow attack Germany or Poland (which is to be fair probably better armed than Germany).
So there's only two options here: either the western press is lying about Russia depleting its stocks and they're actually holding back instead of fully invading Ukraine (God knows why they fought in Ukraine for three years now then instead of just releasing their full "military might" from the get go). Or, the western press is fear mongering about Russia actually being able to invade NATO so the military industrial complex can make a quick buck off of our tax money.
My two cents: there's no chance in hell Russia can invade any NATO country, they can barely function in Ukraine lmao. Just send troops to the baltic and you're gonna be fine. No need for trillions of euros in new guns.