In NATO the smallest members tend to be the most aggressive. It’s probably because they know they wouldn’t be called on to fight any wars they caused. They simply are too small to make a difference. So Lithuania, with an army of just 8,850 active-duty personnel and 5,650 reservists, is now enforcing a blockade of sorts against Russia through Kaliningrad. The latter was seized from Germany at the end of World War II and ended up separated from the rest of Russia after the Baltic States seceded from the Soviet Union. Vilnius is forbidding transport of coal, metals, electronics, and...