Please, when were NATO weapons "piled" at Russia's border? Russia ALWAYS had more troops and tanks "piled" on its side.
Most European countries were not spending the required 2% for NATO.
Most US troops and tanks were stationed in Germany, which is not the Russian border.
And the expectation is that we can pile up our weapons, but they can’t. There was no other reason to expand NATO than to allow us to pile up our weapons.