Russia’s latest attack on the Ukrainians is a warning to the West
Anne Applebaum writes: On Saturday evening, three small Ukrainian naval vessels left the Ukrainian port of Odessa and headed for the Ukrainian port of Mariupol. Along the way, they had to pass through the Kerch Strait, a sliver of water that lies between the Russian-occupied Crimean Peninsula and the Russian mainland. The Ukrainian ships were well within their rights to be there — a similar group of ships went through the strait just a month ago, and a 2003 treaty…