Civil aviation plays a crucial role in the U.S. transportation network and economy. Ongoing turbulence from the COVID-19 pandemic, underinvestment in infrastructure, and climate change are clouding i…

A long-lasting security alliance with the Philippines remains at the heart of U.S. strategy in the Asia-Pacific, a region that includes the disputed South China Sea.

Brazil has long sought a greater role on the world stage, but political upheaval and other enduring challenges have complicated its efforts.

Nearly all nuclear weapon states, as a matter of policy, remain ready to use their weapons without having first suffered a nuclear attack.

Germany’s elections will determine whether Chancellor Angela Merkel remains in power, with ramifications for the migration crisis, the future of the European Union, and U.S.-German relations.