APRIL 28, 2014
President Vladimir Putin seized Crimea with forces loyal to him barely firing a shot in the process. He also faces little armed resistance in eastern Ukraine, at least so far, as he seeks to foment instability in the region, possibly as a pretext for carving off more of his southern neighbor. Yet the Russian president does confront opposition of an unconventional and asymmetrical kind. The battle for Ukraine marks a new frontier in international conflict, one in which capital flows — not tanks or planes — are the West’s strongest weapon.