Russia’s missile assault on Kyiv and other Ukrainian cities on Monday is a reminder that the Kremlin retains a considerable capacity to wreak havoc. The best response is to provide Ukraine with more weapons, including better air defenses.

The attacks follow the Russian pattern going back to the beginning of the invasion. Ukraine registers an apparent military success, as it (or someone) did in striking the Kerch bridge between Russia and Crimea. Russia responds with an attack on civilian targets or infrastructure that is important for civilians such as water or electricity plants.