The Syrian rebels' advance in Aleppo and Hama has been nothing short of astonishing. But what does it mean for the conflicts and tensions around the world, and especially for Russia?

In this episode of 90 Seconds to Midnight David talks to chemical weapons expert and long time visitor to Syria Hamish de Bretton Gordon to understand just what Putin's collapsing 'Southern Flank' in the country means for the war in Ukraine and his personal position.

Producer: Max Bower 

Editor: Izzy Bougeard 

Executive Producer: Bella Soames 

Production Manager: Vittoria Cecchini 

Host: David Patrikarakos 

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