Conceived as the principal defenders of the 1979 revolution, the Islamic Revolutionary Guard Corps has evolved into an institution with vast political, economic, and military power.

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 alliance with Japan has been the cornerstone of U.S. security policy in East Asia for decades. Now, Japan’s role in global security is growing as challenges from China and North Korea mount.  …

The Group of Twenty, an informal gathering of many of the world’s largest economies, is the premier global forum for discussing economic issues. But it has faced divisions over trade, climate change,…