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The Kerch bridge, a vital supply route for Russian forces in Crimea, has been partially destroyed in a huge blast. It was a symbol of Russia\u2019s annexation of Crimea from Ukraine, and the explosion was equally symbolic, coming just one day after President Putin\u2019s 70th birthday. \nThe Russian president described it as \u201can act of terrorism\u201d, and he punished Ukraine\u2019s cities with a day of missile strikes, targeting civilian areas.\nAll this comes as Putin\u2019s Special Military Operation is struggling. Ukraine has now seized back more territory than Russia took in the early stages of the war. \nHundreds of thousands of Russian army reservists have fled rather than being sent to the front, war deaths and the financial costs of the war are mounting, and winter is approaching. \nBut for President Putin, there is no easy exit from Ukraine. He may have no political choice but to double down, and has even dropped dark hints about using nuclear weapons. \nSo this week on the Inquiry we ask: Is Putin\u2019s war in Ukraine at a turning point?

Presenter: Tanya Beckett \nProducer: Ravi Naik\nResearcher: Christopher Blake \nEditor: Tara McDermott\nTechnical Producer: Mitch Goodall \nBroadcast Coordinator: Jacqui Johnson

(Image: Huge fire erupts on strategic bridge linking Crimea to Russia: Credit: Anadolu Agency/Getty)