ISIS

Adnan R. Khan: If the president’s wildly uninformed decision about Syria is the new norm for U.S. foreign policy, the world is in for a rough ride

In Canada and the U.S., ideology has overtaken rational diplomacy which couldn’t come at a more dangerous time.

The author who investigated the story learned the girls’ father was lying, and was threatened by a Norwegian tabloid

Prime Minister Justin Trudeau and Tory leader Andrew Scheer have fiercely debated the fate of radicalized fighters who return to Canada

Adnan R. Khan: Canada put its military resources behind the Kurds to take on ISIS. Now it’s seeing the ugly results.

Adnan R. Khan: The so-called Islamic State has fallen. Its caliphate has crumbled, but its ideological fervor lives on.

Opinion: The attack raises questions about a new type of terrorism—and the new methods required to stop the tide of extremism

Terry Glavin: Jalal Talabani held Iraq together and helped the Kurds thrive. His death comes at a moment when he’s needed the most.

Opinion: Former diplomat Chris Alexander on what’s at stake and what must happen in Afghanistan, as America announces more troops

The cell behind the Las Ramblas attack was not sophisticated. But its tactics underscore how difficult it will be to end this kind of terror.