Ian Bremmer's Quick Take: A Quick Take from Munich, Germany, where the Munich Security Conference is just about to kick off. And it is going to be a historic meeting, and not necessarily in a good way.

Everyone I've been speaking to here, deeply concerned about the sudden conversation, 90-minute conversation, with a full readout from, both the Kremlin and from the United States, between Donald Trump and Vladimir Putin. Not so much concerned that a conversation took place, rather that it happened, and Trump is engaging unilaterally without coordinating in advance with the Ukrainians or the Europeans. And in that regard, very, very different than what we've seen over the first three years of the war.