Or is Vladimir Putin bluffing to gain the world's attention? The history of Russia-Ukraine conflict dates back decades and can only be properly understood by looking at what has come before.

But right now, Canadian citizens are being warned it's time to come home, there are massive amounts of troops on the border and the world is worried diplomacy might not work. So ... what happens next?

GUEST: Seva Gunitsky, associate professor of political science, the University of Toronto.

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