Since the historic June summit, the North Koreans have reaped significant benefits without having to make any real concessions.

Ominously for the health of the democracies of the West, other populists are following Donald Trump's example in attacking their own intelligence agencies.

Donald Trump needs to put substance ahead of spectacle — and U.S. allies ahead of his own fragile ego — before it is too late.

Now that Russia has shown how cybertactics and informational subterfuge can upend established democracies, China will surely be taking some pages from the Kremlin's playbook.

With every tweet by Donald Trump, Asian officials find it more difficult to believe the U.S. remains committed to their security. Nowhere is that more true than in South Korea.

If push comes to shove in the South China Sea, will the U.S. find allies in its corner, or will they just be holding Uncle Sam's coat?

After spending the last six decades defending South Korea and Japan, the U.S. has every reason to demand that its two longtime allies enhance their military cooperation.

Regardless of whether the North Korean regime collapses with a bang or a whimper, ensuring that the country's nuclear weapons are not used, moved or exported is a task that will require the capabilities of the U.S. armed forces.