Status update
"Let's look at the world in question.

Europe can barely hold itself together as it is - whether the Eurozone or EU - their overall economic system is rolling from one disaster to another while 0.3% growth is cheered. Europe has registered near zero real growth for a decade at this point. Their cooperative systems are all imploding as nations - from Sweden to Britain - put up barriers. Russia is guaranteed to seek more territory in Eastern Europe with nobody to stop them. Italy, Greece, Spain, Portugal are all still in economic disaster mode and trying to recover or not implode further. German banks are acting like a depression is on-going, while the German economy is barely expanding. Finland has been in a near decade long soft depression. Norway's oil party is over, the next 20 years will be mostly austerity for them. France is a worsening mess both economically and politically. The UK has no idea what it's doing one way or another; Britain will be a mess for years to come due to Brexit. Oh and not one European country can actually afford to spend a dollar more on defense (and none of them really want to outside of Russia). The US pulling out of Europe in terms of military would cost those economies a hundred billion dollars per year that they don't have and would substantially increase nationalism and infighting.

Japan is fully subservient to the US because they have no means to deal with a rising China threat (they're already bankrupt at a government level and can't even remotely afford to defend themselves without nuclear weapons, their standard of living is rapidly falling thanks to endless Yen debasement). Japan is also still mired in a 25 year economic stagnation caused by debt and bad Keynesian economic policies, a stagnation which isn't going to end so long as they keep doing the same thing over and over again (which apparently they are going to do). Japan is in no position to stand against the US (which is why Abe just paid a visit to Trump, their position is exceptionally weak right now), nor are any other nations in Asia except for China. There is also almost zero unity in Asia, thanks to the divisive nature of China's aggressive territorial ambitions.

South America? Forget about it. Two of their three largest economies are in depressions (Venezuela is beyond that actually, they've fully collapsed as a nation). The other, Argentina, is barely starting to drag itself out of a deep recession. Who there is going to stand up to the US? Not going to happen, they have far bigger problems to deal with in their own backyard.

Australia? New Zealand? Canada? They might lodge complaints, let their grievances be publicly known, but that is all they can do.

Africa? They have no power or unity to cause the US problems.

The Middle East? Happy to keep the fossil fuel party going and would be promoters of the US tanking the Paris Agreement.

And that's it. "