With North Korea preparing to strike southward, and the United States deeply ambivalent about its defense, Seoul needs nuclear weapons now more than ever.

The People’s Liberation Army is growing stronger along four main axes. The United States and its allies must carefully examine how best to confront these strengths.

Here, we expand on our Feb. 2 view that “Trump’s Iron Dome strategy echoes Reagan’s SDI missile defense vision.” ...

China’s New Barges Could Make a Tough Task Easier: Invading Taiwan ...