Threats

North Korea Fires Hundreds of Artillery Rounds at South, Defying U.N.

The largest artillery exchange in three years between North and South Korea comes as Pyongyang signals new nuclear 'deterrence' testing could begin.

Threats

The Arctic: Where the U.S. and Russia Could Square Off Next

A closer look at Moscow's claims in the northern seas. By Uri Friedman

Threats

Is There More to the U.S. Mission in Uganda Than Finding Kony?

The U.S. sent Special Forces to Uganda to intensify the hunt for the infamous warlord Kony. But is it just part of a larger plan to contain the growing conflict in Africa? By Hilary Matfess

Threats

Newt Gingrich’s Plan to Save the World

Newt Gingrich is convinced that America’s fragile electrical grid could be wiped out at any moment. And he has a plan to stop it. By Alex Brown

Threats

How the West Can Help Ukraine -- and Stop Russia

A roadmap for responding to Moscow’s aggression. By David Frum

Threats

Pentagon: No Evidence Russian Forces on Ukraine Border Are Conducting Exercises

Pentagon questions Russia's claim that its troop buildup on Ukraine’s border is to conduct military exercises. By Stephanie Gaskell

Threats

U.S., U.K. Militaries Sidelined as Obama Challenges Russia

British Defense Secretary Philip Hammond says higher defense spending wouldn’t have stopped Russia and NATO forces should stand down. By Kevin Baron

Threats

U.S. To Limit Materials That Can Be Used in a ‘Dirty Bomb’

U.S. officials will phase out certain radiological materials in hospitals that can also be used in ‘dirty bomb’ attacks. By Douglas P. Guarino

Threats

The Easiest Way We Could Stop the Prospect of Nuclear Terrorism

The core truth: no nuclear material means no nuclear bombs. By Graham Allison

Threats

Every State's Territorial Disputes in One Map

Unless you live in Mongolia, your country is probably on this list. By Annalisa Merelli

Threats

Putin Now Gets to Rewrite Rules Meant to Prevent World War III

The United Nations charter says clearly no country can annex another forcible. Now that Putin has, he gets to write some rules of his own. By Steve LeVine

Ideas

Iraq’s Do-Nothing Legacy

The 11th anniversary of the Iraq invasion finds U.S. leaders paralyzed and gun-shy to intervene anywhere in the Mideast. By Gayle Tzemach Lemmon

Threats

Nuclear Summit Not Expected to Advance Military-Grade Security

U.S. officials expect next week's Nuclear Security Summit to punt tougher military material security to 2016. By Douglas P. Guarino

Threats

China’s Secret Satellite Killer, Revealed?

China said it launched this rocket to study the atmosphere. The Internet says China is learning how to launch an anti-satellite weapon. By Tim Fernholz

Threats

U.S. Intel Agencies Say No Terror Chatter on Vanished Malaysian Airlines Flight

One U.S. official said terrorist involvement in Malaysia Flight MH370 would constitute a sharp diversion from typical terrorist 'signatures.' By Global Security Newswire

Threats

Report: Delays in Missile Defense for Poland, Romania

After Russia’s move in Crimea, a new report says the antimissile capabilities, meant to protect Europe from an attack by Iran, are behind schedule. By Rachel Oswald

Threats

Obama Sanctions 11 Pro-Russian Officials Over Crimea as Militaries Posture

President Obama authorizes sanctions on Russian and Ukrainian 'cronies' and officials in the Russian arms sector. By Ben Watson

Threats

Is This the Start of a ‘Cool War’ With Russia?

Washington and Moscow have already crossed a point of no return: Get ready for retaliatory moves across the globe. By Michael Hirsh

Threats

Is Putin Redefining 21st Century Warfare?

The Russian president’s moves reflect greater concern over what constitutes aggressive geopolitical behavior. By Janine Davidson