Ian Bremmer answers your most burning questions on the World In 60 Seconds!

How does the US-Iran escalation change the fight against ISIS and terrorism?

Well, it makes it a little harder. I mean, if we're focusing on Iran, which is largely a geopolitical menace to the United States, it's them and it's their proxy fighters inside different states, whether it's the Houthis in Yemen or it's Hamas in Gaza. But when we think about terrorism, it's the Sunni radical Islam forces that are mostly an issue, al-Qaeda and ISIS. And the US is spending less time focusing on that. And indeed, they suspended their fight just now against ISIS in Iraq. Long term, that's going to bite us. Though, it bites the region and the Europeans a lot more given the numbers and the geographic contiguity.