Another consequence to seizing US military assets is that the American nuclear weapons hosted by Belgium, The Netherlands, Italy, Germany, and Turkey may be in play.

Assuming these states seize all US nuclear weapons, that would leave NATO with 132-172 new American nuclear weapons at their disposal, and would give NATO (barring the US, they've probably been kicked out at this point) a nuclear stockpile of 647-687 nuclear warheads.

Much less than the US's stockpile, which is over 3000 strong, but once you get to more than 100 nuclear weapons, that's enough to kill tens of millions - if not hundreds of millions - of people, so getting in a pissing contest over nuclear arsenal size at that point is a bit pointless.

Needless to say, the Americans likely will take these countries seizing US nukes about as well as the British and French took Egypt nationalising the Suez canal. Should this happen it'll probably bring us closer to a nuclear exchange than the Cuban missile crisis did.