Vladimir Putin’s nuclear threat shows how much is going wrong for him in Ukraine

THE RUSSIAN invasion of Ukraine is not going to plan. In Kharkiv, the country’s second city, Ukrainian defences appear to have repulsed a major assault. In the south Vladimir Putin’s forces have taken territory, but partly by avoiding Ukrainian towns. Around Kyiv, Ukrainian forces have foiled numerous attacks. In the capital itself, Volodymyr Zelensky, Ukraine’s president, has cut a defiant figure. In contrast to the drug-addicted Nazi Mr Putin describes in his speeches, Mr Zelensky has taken his place at the head of a nation buoyed by courage and patriotism.

The war is still in its first week. Russia’s president can summon reserves of military force that he could yet use to surround Ukrainian cities, including Kyiv, at terrible cost to civilians and the soldiers of both sides. It is still a war that Mr Putin may well win, in that he could eventually impose a puppet government in Kyiv or Kharkiv, the original Soviet capital of Ukraine.