My question is, will Trump disallow US weapon sales to Europe? This will have a huge impact short term as Europe has to adjust to not having access to US weapon manufacturers.
Out of spite he might try to do it, but the orders from Europe are huge. If they canceled all the orders and go full "no more US weapons allowed", I'm guessing US stand to lose close to half a trillion orders, which might trigger a hefty response from congress, lobbyists and companies. He is transactional, wants to make money for his billionaires, not lose a shit ton of it.
Problem might be that France always opposed the idea of buying external, so this might make a lot more EU nations aware of the problem and cancel orders or not make new ones from US... It might even trigger a obligation to use those 700 billion € funds in enlarging existing Euro companies. Who knows, the world is not used to the pace Trump team spews bullshit
I am guessing the speed is a requirement, a blitzkrieg against the internal opposition, until they overwhelm the defence (dems, courts) before they can meaningfully react to what is happening