The hijackers’ travel patterns before the attacks help reveal the terrorists’ organizational structure.

Far-right extremists have done little to disguise how they crowdfund their activities and legal defenses.

Russia’s imprisonment of Brittney Griner is affecting U.S. policy in Ukraine, and other adversaries are watching.

The United States tries to instill liberal norms in partner forces, but what happens when those norms are in tension?

There's room to improve in the upcoming midterm elections.

Bin Laden's successor steered the organization through a tumultuous decade and left it stagnated, but the next leader will have new opportunities for growth.

The hype about medium-altitude long-endurance drones pays too little attention to their vulnerability.

The U.S. military would probably fare better in a conventional conflict like Russia's war in Ukraine, but not all the lessons it learned in the war on terror would serve it well.

Ambitious national CVE policies are trapped in a vicious circle that restarts after every major terrorist attack.

As Biden heads to the Middle East, there are limits to the potential for diplomatic breakthroughs.

Hayat Tahrir al-Sham's unusual request to be removed from the U.S. terrorism lists is unlikely to be fulfilled, but this reflects bureaucratic inertia and political incentives as much as the group's radi...

The Russian military's prioritization of dramatic public displays over exercises that simulate combat have left it ill-prepared for the war in Ukraine. But U.S. security force assistance programs often i...