Threats

NATO Expands Recon Flights in Eastern Europe

NATO is adding flights over Poland and Romania in the latest response to Russian efforts in Ukraine. By Global Security Newswire

Ideas

How Obama Can Hold Back Russia and Reassure Europe

Crimea may be lost, but President Obama should fly to Brussels and reassure Europe that NATO will keep Putin out of Eastern Ukraine. By Barry Pavel

Threats

Q&A with Dennis Ross: How Ukraine Affects the Middle East

Veteran diplomat Dennis Ross says the U.S. response to Ukraine will have strong reverberations across the Middle East. By Bernard Gwertzman

Threats

Obama's Nonmilitary Leverage Over Putin

President Obama has more nonmilitary options than his predecessors had for responding to Moscow's aggression. By George E. Condon, Jr.

Threats

Dempsey Reassures NATO Allies on Ukraine

The chairman of the Joint Chiefs says he’s prepared to back up NATO militarily if things escalate in Ukraine. By Ben Watson

Threats

The Naval Base at the Heart of Putin’s Fight for Crimea

Putin's push to secure the military outpost he leases from Ukraine could bring the entire region under Russian control. By Marina Koren

Ideas

Is This How the War on Terror Ends?

Rivalry among great powers long characterized international affairs—and now it's back. By Peter Beinart

Ideas

The Reason China Isn't Backing Russia's Ukraine Invasion? Money

By now, it's clear Beijing believes its economic interests in Ukraine outweigh any reason to back Putin's folly -- for now. By Elizabeth Economy

Ideas

To Inflict Pain on Russia, Target Its Energy First

If Washington wants to change Putin’s mind about Ukraine, start targeting Russia’s oil, money and leadership – and stop drawing down U.S. troops in Europe. By John R. Deni

Threats

Ukraine Is the Greatest Challenge to Geopolitics Since the Cold War

As Russia confronts Ukraine, the definition of modern military intervention hangs in the balance. By David Rohde

Threats

Pentagon Suspends U.S.-Russian Military Exercises

The Defense Department has halted all military-to-military exercises with Russia in response to the invasion of Crimea in eastern Ukraine. By Stephanie Gaskell

Policy

Ukraine Is Obama's Biggest Foreign Policy Test Yet

Forget Iran and Syria. Everything now depends on a show of diplomatic strength that will isolate Russia's Putin. By Michael Hirsh

Threats

The Strategy Behind Russia's Takeover of Crimea

Moscow has supported secessionist movements in ex-Soviet states to expand its influence in the region. Is the Crimean crisis just the latest example? By Uri Friedman

Threats

Heading Off Russian Invasion, Kerry to Visit Ukraine on Tuesday

Calling Putin a ‘tyrant’ whose actions reflect ‘19th century behavior in the 21st century,’ Secretary of State John Kerry heads to Kiev. By Stephanie Gaskell

Threats

U.S. Demands Putin Pull Back from Ukraine; Security Council Meets

As thousands of Russian forces enter Ukraine, President Obama calls Vladimir Putin, insisting on a pullback and threatening global 'isolation.' By Kevin Baron

Threats

U.S. Warns Russia a Ukraine Intervention Would Be a ‘Grave Mistake’

Military leaders are keeping a close eye on the rapidly deteriorating situation in Ukraine as the President Obama warns Russia not to intervene. By Stephanie Gaskell

Threats

How Should the U.S. Deal With Putin?

Russia's wily president has outmaneuvered Western leaders for years. Is President Obama next? By David Rohde

Policy

Ukraine’s Defense Minister Is Ignoring Hagel’s Calls

Defense Secretary Chuck Hagel has been calling Ukraine’s defense minister for days, but no one’s answering. By Stephanie Gaskell

Policy

Will Ukraine Become a Proxy War Between U.S. and Russia?

The main reason the U.S. cares about the violence in Ukraine? Vladimir Putin. By Matt Vasilogambros

Threats

NATO Chief Tweets Ukraine Military In a Plea for Peace

NATO’s Gen. Breedlove uses Facebook and Twitter to beg new Ukraine military leaders for peace, after President Obama issues warning. By Kevin Baron