As the war in Ukraine enters its second month, Nato and European leaders have pledged to send in more weapons and to ramp up sanctions against Russia. But is it enough? Anne McElvoy assesses the strength of those promises with Marie Yovanovitch, a former US ambassador to Ukraine. Plus, Edward Carr, The Economist’s deputy editor, discusses which diplomatic strains are yet to test Western unity. Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer   See acast.com/privacy for privacy and opt-out information.