Earlier quoted context omitted.
The US has no authority whatsoever over a foreign parent company. The US subsidiary also has no access to "foreign" data.
The US by and large can (and does) assert authority outside of its jurisdiction, from which another country can choose to capitulate. Most of the time countries do, because they are all swapping data on their citizens between themselves to skirt various laws. In the case where the US really wants something, and the country won't yield, they'll fund contras or destabilize the government (if small enough to be bullied)…
Pretty funny you're jumping straight to warfare. This proves why Americans cannot be trusted.
In any case, it's better for me that the Americans will need to start a war with the EU to get at my data instead of just giving it to them.