El Salvador and the Central African Republic have made Bitcoin legal tender, but market volatility has undermined the experiment.

Despite limits to their political and social power, Iranian women are leading protests that could jeopardize the regime.

Russia’s moves to mobilize thousands more troops and to annex more of Ukraine’s territory signal a new, potentially more dangerous phase of the war.

The debate over how to address persistently low voter turnout is heating up ahead of the midterm elections.

Ukraine’s first steps toward eventual EU membership are the start of a long process that has raised the stakes in the country’s war with Russia.