How to treat signs that Russia at last wants to lower tensions

A DEFINING feature in the diplomacy of Russia’s president, Vladimir Putin, is to keep everyone guessing—because he can use doubt to magnify his threats, conceal his weaknesses and gain the initiative. That was the effect of his words on May 7th, one of the few public occasions he has spoken formally about the crisis in Ukraine. Mr Putin urged the pro-Russian separatists in the east of the country to postpone the referendums they planned for this weekend. He said that he saw Ukraine’s presidential election due on May 25th as a “step in the right direction”, contradicting his own foreign minister, who has repeatedly called it absurd. And he reported that he had ordered Russian troops to pull back from the border.

A few welcomed this as the turning-point in a crisis that has now escalated into a low-intensity war. It is to be hoped that they are right. But many more, including this newspaper, will greet Mr Putin’s words with due scepticism. Throughout the crisis, Russia has said one thing and done another. Even as the diplomacy takes its course, the West must sustain its pressure on Russia and its support for Ukraine.

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