It is hard to know what is most surprising about the fatal depot story: the timing, the scale of the Czech response, or the operation itself. It can be disconcerting to discover you have been at war for seven years. The Czech government’s announcement that Russia was behind an explosion …

One question has been irking Turkish commentators since January: why won’t U.S. President Joe Biden speak to his Turkish counterpart, Recep Tayyip Erdoğan? All the key world leaders have had phone conversations with the new U.S. president—Russia’s Vladimir Putin included—but Turkey’s president has been given the cold shoulder. Erdoğan must …

Though it is clear that Kiev cannot win in any scenario involving a solo defense against a Russian invasion, it can possibly prevent Moscow from achieving a blitzkrieg-style outcome through persistent military and civilian resistance. In recent weeks, the Kremlin executed the largest military build-up on the Russian-Ukrainian border since …