Zelenskyy appeared to respond with his own post late Sunday, saying, “We all share a strong desire to end this war quickly and reliably.” He said that “peace must be lasting,” not as it was after Russia seized Crimea and part of the Donbas in eastern Ukraine eight years ago, and “Putin simply used it as a springboard for a new attack.”

In President Donald Trump’s warm red-carpet greeting at the Alaska summit, Russians saw an opening to pull America away from its traditional allies in Europe.