As the war in Ukraine enters a fifth month, and with the conflict entering a stalemate, what could Russian escalation look like? Would they turn to chemical weapons? And why are bio weapons still part of the debate?

Dan Kaszeta, a former US military and secret service officer, chemical weapons expert and author of Toxic: A History of Nerve Agents, From Nazi Germany to Putin's Russia, joins Arthur Snell for another war bulletin.

We're putting out irregular war bulletins covering different aspects of the Ukraine crisis. You can support our work on the crowdfunding app Patreon: doomsdaywatch.co.uk

Resources to help the Ukrainian people can be found here: https://ukrainewar.carrd.co/

DOOMSDAY WATCH was written and presented by Arthur Snell, and produced by Robin Leeburn with Jacob Archbold. Theme tune and original music by Paul Hartnoll. Group Editor: Andrew Harrison. DOOMSDAY WATCH is a Podmasters production

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