Ukraine situation

Helllo Everyone,

My daughter is doing a school report on the Russian/Ukraine situation. I’m usually on top of current events, but I haven’t paid much attention to what’s been going on. She needs to know the point of view of each nation, ie: why Russia is pissed at the Ukraine and via versa. Would someone be kind enough to bring me up to speed? Thanks.

There’s an app for that.

Wait, no.

There’s a Wikipedia article for that.