Whatever the provenance of the two drones that approached the Kremlin early Wednesday morning, one thing was clear: The Russian government wanted the world to know about them. The Kremlin made a deliberate choice to quickly make public what it claimed was a drone attack aimed at assassinating President Vladimir V. Putin. It published an unusual, five-paragraph statement on its website that named the Ukrainian government as the perpetrator and asserted the right to retaliate against Kyiv. The Ukrainian government denied any involvement in the alleged episode and there was no way to independently confirm the Kremlin’s claim of an...