Former Homeland Security Advisor Fran Townsend breaks down the complicated history of Iran and its neighbor Iraq — and the US foreign policy mistakes that contribute to today's tensions with Iran.

New Yorker staff writer Susan Glasser speaks with Ian Bremmer about impeachment, the presidential election and other major stories coming in 2020.

Massachusetts Governor Bill Weld is attempting the unthinkable for a Republican not named Trump: He's running for President.

Urbanist and author Richard Florida explains why large urban areas contain such extremes—the richest and poorest people often dwelling within blocks of one another.

In this episode, Ian Bremmer takes a look how diseases spread and become global. His guest, Dr. Anthony Fauci, is a leading epidemiologist and director of the National Institute of Allergy and Infectious Diseases at the NIH.

When it comes to his flagship policy proposal, do the numbers add up? Ian Bremmer interviews Democratic presidential candidate Andrew Yang, and the two talk about universal basic income, technology, foreign policy, and why Yang isn't thrilled about Mike Bloomberg's decision.

The Catholic Church is facing tremendous internal upheaval and Pope Francis is at the center of it. In a candid conversation with Ian Bremmer, bestselling author Fr. James Martin discusses the moment of potential schism the Church is facing.

When President Trump decided to withdraw American Troops from Kurdish-controlled Syria, many people were shocked. But the Kurds, themselves? Today's guest, Faysal Itani, says: not so much.

Seventy-five years after the end of World War II, right-wing extremism is again on the rise in Germany. Ian Bremmer sits down with the country's former Defense Minister, Karl Theodor zu Guttenberg, to understand the reasons why and road ahead for Germany and Europe.

As the U.S. media focuses on details of President Trump's dealings with the newly elected President Volodymyr Zelensky of Ukraine, GZERO World with Ian Bremmer is taking a deep dive into the former Soviet republic itself.

Colombian President Iván Duque will not be intimidated. Not by armed rebels within his own country or an antagonistic Venezuelan regime. In this week's interview Ian Bremmer asks: At what point does military action become the only option?

Canadian Prime Minister Justin Trudeau is in the fight of his political life and things just got even messier. In an interview with Ian Bremmer he makes his case for why Canadians should look past recent scandals and vote him in for another term.

Montana Governor Steve Bullock is running for president, but most people don't know that. Despite being popular in his home state, which Trump won handily in 2016, Bullock is struggling to gain ground in a polarized Democratic Party.

Turkey's relationship with Russia is causing grave concern for other NATO members. We look at the future of the alliance and talk to its former Supreme Allied Commander, Admiral James Stavridis.

Society's rich and powerful want to make the world a better place. And that, journalist Anand Giridharadas says, could be a real problem.

Historian Niall Ferguson explains why a new Cold War is heating up between the US and China, and why — unlike the old brouhaha with the Soviets — this one is different.

As US-China trade tensions spiral from bad to worse, what is really at stake for both countries?

Political instability is rattling countries across Latin America, pushing millions of migrants to head north in search of a better future.

Cities are stepping up to address the world's thorniest challenges, from climate change to migration. Ian Bremmer sits down with three mayors from across the globe to talk about how their cities are taking on the world's most pressing problems.

Ian Bremmer delves into the geopolitics of space before sitting down with Harvard Astrophysicist Avi Loeb to examine cutting-edge research on the galaxies -- everything from interstellar travel to black holes. And on Puppet Regime, Donald Trump's Space Force makes an unexpected landing.

America nearly launched into a major military confrontation with Iran. Then Trump backed off. So what happened?

How do you measure success? Maybe it's by money, job, or family. Whatever it is, there's usually something tangible to gauge. But what happens when the old metrics stop working?

Growing up in North Korea, Yeonmi Park says she survived the great famine of the 1990s by foraging for grasshoppers and dragonflies. Today, she is a human rights activist living in Chicago. How she got from there to here is the story of a lifetime.

What if everything you did was tracked, logged and used by some Orwellian overseer?

It's nice to be on top of the heap. But how much longer can the United States stay there? Ian Bremmer talks to the man who once commanded the world's most powerful military, former Defense Secretary Ash Carter.

Avi Loeb, the head of astronomy at Harvard and he's made a compelling case about an "alien probe."

Ian Bremmer talks to journalist and cofounder of The Intercept, Glenn Greenwald.

Ian gets real about life after global warming and then sits down with David Wallace-Wells, a man who's come up with a roadmap to deal with climate change.

Indians are about to pick their next leader. But how they do it may be more interesting than whom they choose. Spoiler Alert : Privacy is a big concern.

President Trump fired him after just 3 months. Now, former U.S. attorney Preet Bharara -- a man who oversaw investigations into suspected Russian organized crime -- offers his take on the Mueller investigation.

After the ISIS caliphate fell in Iraq, a question hung over much of the country. What comes next?

On GZERO World, in bailing out Greece did the European Union destroy the village in order to save it?

By the end of this episode, you're going to feel 10% less crazy about the world.

On GZERO World, Ian looks at the border crisis with Mexico's former Foreign Minister, Jorge Castañeda.

The war in Afghanistan has gone on so long that people born after 9/11 can now enlist. So how do we get out? Ian digs into it and then talks to someone who knows the country better than most: Retired General Stanley McChrystal, who once commanded all NATO forces in Afghanistan.

A discussion with veteran U.S. foreign policy aide and head of Google's Jigsaw innovation lab, Jared Cohen.