President Trump has struck a new NAFTA deal with Mexico, but with severe disagreements remaining between the U.S. and Canada, his approach to trade negotiations is about to get its biggest test yet.

Can South Korea’s Moon Jae-in broker a process for North Korean denuclearization acceptable to both Washington and Pyongyang?

The European Parliament’s vote to reprimand Hungary over its growing authoritarianism has tested the EU’s readiness to stand up to illiberalism within the bloc.

Brazil’s general election will be one of the biggest tests of its democracy in decades. Here’s a rundown of the candidates and issues to watch.

Political and economic unrest in Nicaragua could stoke the flames in a region where insecurity has forced tens of thousands to flee in recent years.

The conference in Poland will be a major test of the world’s collective political will to fight global warming. Following through on promises made in Paris will not be easy.

A collapse of this Cold War–era INF treaty, which many believe has favored the United States, could unleash a new age of nuclear weapons competition with Russia.

The United States has been helping Somalia fight al-Shabab militants for more than a decade, but rights groups say increasing drone strikes are putting civilians at risk.

Iran appears increasingly boxed in by intensifying U.S. sanctions, the latest of which will effectively cut it off from its main oil customers.

Neither Iran nor the United States likely wants war, but the possibility of a miscommunication is considerable, risking a dangerous escalation.