IMO probably blatent party arguments, people only vote based on side, and even in the senate, they just filibuster if it is something their party dosent like. nothing can get done, no matter what side you're on.
WW1 made Russia to leave during the war, so it was one of the factors that made them have a revolution
Means to dichange something .
It wasn’t settled by any western powers and it is some of the most fertile land on the planet.