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

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

Amid a spate of drug cartel attacks, Mexico is considering whether to increase security cooperation with the United States.

Violence between rival Shiite factions has raised concerns that Iraq’s weak government is facing prolonged political upheaval.