Day 226.Today, as well as looking at updates from across the battlefront, we speak to Matthew Harries, Director, Proliferation and Nuclear Policy at the defence and security think tank RUSI, to discuss and analyse the rising nuclear tensions between Russia and the West.Contributors: David Knowles (Host). Follow David on Twitter @djknowles22.Dom Nicholls (Associate Editor, Defence). Follow Dom on Twitter @DomNicholls.Francis Dearnley (Assistant Comment Editor). Follow Francis on Twitter @FrancisDearnley.With thanks to:Matthew Harries (Director, Proliferation and Nuclear Policy, RUSI). Follow Matthew on Twitter @harries_matthew, and RUSI on @RUSI_org.Email: podcasts@telegraph.co.ukSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.