Opioid addiction has become one of the United States’ biggest killers, endangering public health, the economy, and national security. But closing the floodgates on fentanyl poses a significant foreig…

The U.S. government responds to scores of disasters each year in coordination with foreign, state, and local partners, but more frequent and severe storms, fires, and floods are straining resources.

Under the command of Xi Jinping, the Chinese Communist Party faces a host of domestic and international challenges as it aims to bolster China’s great-power status.

Tens of millions of Chinese now identify as Christians, and the number has grown rapidly, posing challenges for a government that is officially atheist and wary of threats to its power.

Ukraine’s Westward drift since independence has been countered by the sometimes violent tug of Russia, felt most recently with Putin’s 2022 invasion.