A look at the grim scenarios—and the U.S. playbook for each

There are lessons for other nations in the events of the past few days.

Rather than anxiously await news alerts, turn your attention to these thoughtful, big-picture views of Ukraine and the conflict.

Putin knows that the West will not fight for Ukraine because it is not a NATO ally, so traditional military deterrence will not work.

The flaw in hawkish claims about Syria and Ukraine. 

A bad idea comes around again.

If the United States does nothing, the coming seasons will be even bleaker—and not just in Kyiv.

In the Donetsk People’s Republic, Russia is everywhere, from the mailboxes to the license plates. Ukraine is nowhere.

The opposition now controls Kiev, but the fight for Ukraine's future is far from over.

The first day of impeachment hearings showed Trump’s improper bullying of Ukraine setting off alarms throughout the government.