Senator: The U.S. Military is Preparing for a War with North Korea That It Hopes Never to Fight

Most Americans are not aware of "just how close we are to war on the Korean peninsula," says Sen. Tammy Duckworth, D-Ill.

Trump’s Red Line on North Korea Gets Fuzzier

Mike Pompeo adds a few caveats to America's strategy.

Donald Trump: Unlikely Defender of U.S. Allies

The candidate who said Japan and South Korea made "billions screwing us" is now a president vowing to stand by them.

Trump’s North Korea Policy Earns Praise—From a Former North Korean Diplomat

“The unpredictability has worked to some extent,” says one of the country’s highest-profile defectors.

Senator to Donald Trump: Americans Deserve to Know the Costs of a North Korea Conflict

In a letter to the president, Tammy Duckworth cites the lack of debate before she was deployed to Iraq—and insists that it not happen again.

Washington Resumes Talking About Nuclear War

As the North Korean crisis escalates, the unthinkable has suddenly become discussable.

What’s the Logic Behind Trump’s Threat to North Korea?

The president has vowed the greatest display of military power in living memory—over threats.

‘Our Readiness for a Terrorist Attack Is Dangerously Low’

“I’ve never seen anything quite like” Trump’s approach to national security, says a former counterterrorism adviser to three presidents.

Trump’s Attack on the Legitimacy of Critiquing Military Operations

The president took to Twitter to argue that publicly discussing the success or failure of a mission “only emboldens the enemy.”

The Key to Putin’s Cyber Power

The Russian president has both the capability and the intent to cause harm, says a former U.S. ambassador to Russia. And the threat won’t vanish once Donald Trump takes office.

How Trump’s Government Could Change America’s Approach to Terrorism

The president-elect may oversee a coming "War on radical Islam."

How Geography Explains Donald Trump and Hillary Clinton

Because of its location, America can choose whether it wants to be a gatekeeper or a global policeman.

Fighting Terrorism With a Credit Card

Interest payments on America’s war debt could one day exceed the direct costs of combat itself.

What If the Terrorists Are Already Here?

How to talk about terrorism today—and how to stop talking about it

The Symbolism of the New U.S. Medal for Fighting ISIS

A very close look at the military’s award for service in Syria and Iraq.

How Harry Truman Announced the Hydrogen Bomb in 1953

Here's how the U.S. president justified thermonuclear weapons—63 years before North Korea claimed to possess them.

$300,000 an Hour: The Cost of Fighting ISIS

What price will the U.S. ultimately pay to neutralize the Islamic State?

Is It Peacetime or Wartime in America?

Obama is losing his battle with perpetual war.

Why There Are So Few POWs From Today’s Wars

Americans are taken captive at a much lower rate than in past conflicts.