Hotswappable batteries and an option for a keyboard would be nice too. Virtual keyboards seem like they're getting shittier (at least on Android) and they never matched the accuracy of a regular keyboard.
That's what they said about Afghanistan too though. Plus, the odds of the US getting directly involved in a war against Europe any time soon are still pretty damn low.
Kinda seems like Russia is getting fucked up pretty badly already and they haven't even taken one country. Seems doubtful they would have much luck against an alliance.
You'll probably be mostly fine, but expect people to find your accent to be a novelty.
Racists usually keep their mouths shut in public, just pay attention to your surroundings and be careful (good advice anywhere you go).