Trade between the world’s two biggest economies has ballooned in recent decades, bringing significant benefits but also perils that have led to calls to rethink the relationship.

The National Guard is a special part of the U.S. military that answers to both state governors and the president. While it began as a “strategic reserve,” the guard has come to play an important role…

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.  …

Modern vice presidents can trace much of their political influence to the broad reforms that Jimmy Carter and Walter Mondale made to the second-highest elected office in the late 1970s.

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,…