Ian Bremmer shares his insights on global politics this week on World In :60.

North Korea ratified a major defense treaty with Russia. What do both sides hope to gain?

Well, the North Koreans really want mutual defense. They are helping the Russians out in their time of need, sending a whole bunch of troops, things that the North Koreans have in surplus and don't really value and the Russians can really use right now. And they would love to see Russian troops in North Korea. They'd love to see that appear as mutual defense and give the North Koreans a lot more leverage so they are not forced to be supplicants in Beijing, and they can also be more assertive versus South Korea, Japan, and others. This is a major escalation in this war and a big problem geopolitically.

The Russians, of course, are just looking for more troops, more ammunition, more ability to fight, and they are in a much, much stronger position to get terms that they want from the United States and from the Ukrainians. Especially now that the US has elected somebody that says he really, really wants to end the war. Putin will be like, "Okay, but here are the things that I need if you want me to end the war." Trump's incented to give him a lot more of those than almost anybody in NATO right now.