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It鈥檚 800 days since Russia launched its full-scale invasion of Ukraine. We answer your questions on whether Russia has used chemical weapons, could Western troops ever be deployed, what the prospects are for peace, and at what cost?

To help do this Victoria and Vitaly are joined by two friends of the podcast: Samantha de Bendern, and Newsnight鈥檚 Mark Urban.

And we hear from inside the town at the epicentre of the fighting in eastern Ukraine, Chasiv Yar.

Today鈥檚 episode is presented by Victoria Derbyshire and Vitaly Shevchenko.

The producers were Arsenii Sokolov, Cordelia Hemming, Ivana Davidovic, Nick Sturdee and Charlie Henry. The technical producer was Hannah Montgomery. The series producer is Tim Walklate. The senior news editor is Sam Bonham.

Email Ukrainecast@bbc.co.uk with your questions and comments. You can also send us a message or voice note via WhatsApp, Signal or Telegram to +44 330 1239480

You can join the Ukrainecast discussion on Newscast鈥檚 Discord server here: tinyurl.com/ukrainecastdiscord