Taiwan has the potential to be a flash point in U.S.-China relations. U.S. House Speaker Nancy Pelosi’s trip to Taipei in 2022 heightened tensions.

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…

Sub-Saharan Africa is home to many of the world’s longest-ruling heads of state. Pro-democracy advocates have at times successfully stopped presidents from extending their mandates, but the authorita…

The world is inching closer to eradicating polio, but armed conflicts and opposition to vaccines stand in the way of finally eliminating the disease.

A spate of train derailments, most notably in East Palestine, Ohio, has reinvigorated the debate over the nation’s railroad infrastructure. Here’s how U.S. rail could be brought up to speed.