Bill Emmott, former editor of The Economist, will chair a series of Thursday discussions with Blavatnik School students, faculty and experts about hot topics in current affairs. This week's topic is 'Dealing with the Russian "pariah"': how should we understand Russia's motives and strategy in Syria, Ukraine and elsewhere, and how should other countries respond?

Speakers for this week:

• Arkady Ostrovsky, Russia editor of The Economist and author of "The Invention of Russia" (2016 Orwell Prize winner)
• Ezgi Basaran, Turkish journalist and academic visitor at St Antony's College, Oxford