Russian President Vladimir Putin opened the Kerch Strait Bridge connecting Crimea, Ukraine, with mainland Russia on Tuesday. Putin did so by in a typical show of bravado by leading a column of transport vehicles across the bridge. Ukraine should now destroy elements of the bridge. While that course of action would be an escalation against Putin and one that would almost certainly spark Russian retaliation, this bridge is an outrageous affront to Ukraine's very credibility as a nation. Of course, from Putin's perspective that's the whole point. The bridge cost Russia's near-bankrupt government billions of dollars, but it offers Putin...