The US officially entered war with Russia. That means also B.R.I.C.S

This means if you live in a city you might want to go camping for a while. China can nuke anywhere in the US and the US can nuke them. It could be complete world destruction or it could just eradicate all "city folk". Big and tiny cities like Lahaina can be targeted by submarine attacks or straight up nuclear missiles. Expect this war to be horrible. Any of us can die.