The mass casualty theater attack in Moscow was a reminder that affiliates of the Islamic State have reorganized and infiltrated even powerful states.

A year into the civil war in Sudan, more than eight million people have been displaced, exacerbating an already devastating humanitarian crisis.

The mass protests that have rocked Peru since December threaten to upend regional supply chains, intensify migration flows, and strain Lima’s bilateral relations.

Pakistan’s decision to deport undocumented migrants over perceived security risks is poised to affect almost two million Afghans. 

The latest mass shootings have prompted calls for more vigorous action by U.S. counterterrorism authorities, but the target is elusive.

Cuba’s authoritarian regime has failed to avert an economic crisis, repair decaying state institutions, and prevent the country’s largest outflow of migrants since the 1960s.