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

Scientists say the rain forest is approaching a critical tipping point at which the damage is irreversible.

An impending Israeli ground invasion of Rafah could threaten more than a million civilians seeking refuge in the city and further restrict humanitarian aid into the Gaza Strip.

The Joe Biden administration says the restrictions are directed at protecting national security, not stifling economic competition.

The main battle tanks that the United States and Germany have agreed to provide Ukraine will help its forces punch through Russian fortifications and retake lost territory.

News of Iran’s upcoming release of U.S. nationals and the unfreezing of Iranian assets has stirred speculation of a new nuclear deal. But there are many obstacles to such a breakthrough.

The impeachment of President Pedro Castillo Terrones marks Peru’s latest political crisis. As violent protests extend into their second week, what’s in store for the Andean nation?