There will be a period of chaos as the old world and new world duke it out.
No sir, they definitely didn't do that before Russia countered by doing the same.
Nope. We have always been at war with Eurasia. Move along citizen.
They broke an agreement by doing this, then condemned Russia for reacting in the same way.
It's simple hypocrisy.
I'd say it's easier, if you take into account the ludicrous number of military bases the US has all around the world, the constant involvement in one or more wars, the infinite sabre rattling with North Korea, the unconditional support for what ever the hell Israel decides to do.
I don't think US is more or less naturally inclined to be an international bully, but they have the capacity and actually do it on a scale no other country can since the USSR dissolved.