Michele Kelemen

Efforts to end a Russian-backed offensive by the Syrian regime now turn to a diplomatic showdown between Secretary of State John Kerry and his Russian counterpart at a meeting in Munich.

Colombian President Juan Manuel Santos visits the White House at a time when his country is on the verge of a historic peace deal with leftist rebels known as the FARC.

Now out of an Iranian prison, Washington Post correspondent Jason Rezaian thanked his colleagues on Thursday for working for his freedom.

The State Department has released details of new limits on the visa waiver program, which allows people from 38 countries to fast-track their travel to the U.S.

The U.S. imposed new sanctions on Iran just hours after three Americans released as part of a prisoner swap made their way to Europe. What does this spell for relations between the two countries?

On a day that sanctions were lifted on Iran, for its compliance with last July's international nuclear agreement, Iran also released five American prisoners. The U.S. released seven Iranians, as well.

Secretary of State John Kerry addressed relations with Iran on Wednesday after the release of 10 U.S. sailors who were held for several hours when they drifted into Iranian waters.

The sister of one former U.S. Marine, who is languishing in an Iranian jail, will be in the audience at the State of the Union Tuesday. She tells NPR what she is hoping to hear from President Obama.

North Korea claims to have conducted a hydrogen bomb test. Diplomats are working on more sanctions in order to pressure North Korea to change course.

The State Department says the U.S. is not going to be the "referee" in the dispute between Saudi Arabia and Iran, but their dispute threatens U.S. goals in the region.

When the U.S. and Cuba reopened their embassies this year, American businesses started to look for opportunities on the island. They are quickly learning, though, that it will be a tough slog.

John Kavulich, president of the U.S.-Cuba Trade and Economic Council, took a deep dive into the ...

The country has been dismantling parts of its nuclear program more quickly than many expected. When international inspectors confirm Iran has met its obligations, many sanctions will be lifted.

John Kerry is on the path to log more miles than any secretary of State in history. Kerry's reason for all that travel is his firm belief in face-to-face diplomacy.

Secretary of State John Kerry tries to keep up the momentum in talks to resolve the civil war in Syria. Nearly 20 countries are meeting in New York to plan for peace talks expected next month.

Nearly two years ago, there were allegations from young children at a camp where they were supposed to be protected from war. They said French peacekeepers offered them food in exchange for sex acts.

The U.N. Security Council meets for the first time on the subject of how to clamp down on the various ways ISIS raises money — from oil sales to extortion.

It has been a year since President Obama and Raul Castro set relations on a new course. The U.S. and Cuba now have reopened embassies, but they're still testing each other on key disputes.