Russia's invasion: what's the military strategy?
The war in Ukraine is a week old. What have we learned about the military strength - and tactics - on both sides?
And what might that tell us about how the conflict might play out?
David Aaronovitch is joined in The Briefing Room by:
Vitaliy Shevchenko, Russian editor at BBC Monitoring.
Colonel Liam Collins, founding director of the Modern War Institute in New York.
Ed Arnold, Research Fellow in European security at RUSI and an ex British Army officer who was posted to NATOs Supreme Headquarters Allied Powers Europe in 2014 during the Russian annexation of Crimea.
Kataryna Wolczuk, Professor…
The skinny
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