Europe has enough leverage to insist that some gas flows through Ukraine. Russia has an interest in keeping this option open, as well.

Any move by Putin to enforce his will in Belarus with force could invite tougher Western sanctions and scare investors.

The arrest of Michael Calvey might help focus minds on the value of foreign investment and reform for Russia’s economic future.

Sanctions on Russians can be a powerful and effective tool, but in some cases there is a risk of spillover damage to other U.S. interests.

The U.S. should not wall off Russia from the rest of the world.

Eurasia, poised between Europe and Asia, is at a crossroads. Russia's new "turn to the East," the launch of the Moscow-led Eurasian Economic Union...