When the US assassinated Qassem Soleimani, he was one of the most powerful men in Iran. Known as 'the shadow commander', he enacted the wishes of the country's Supreme Leader across the Middle East, establishing the Islamic Republic as a major force in the region. But all this was a long way from where he began - on the margins of a nation whose ruler was seen as a friend of the West.

Through Soleimani, Arash Azizi examines how Iran came to be where it is today. Providing a rare insight into a country whose actions are often discussed but seldom understood, he reveals the global ambitions underlying Iran's proxy wars, geopolitics and nuclear programme.