Nouri al-Maliki was Prime Minister of Iraq between 2006 and 2014, a tenure that makes him easily the country's longest serving post-2003 prime minister.

Maliki became Iraq's head of government in the maelstrom of Iraq's sectarian civil war, following the 2003 US-UK invasion of the country. Today’s is a story of the collapse of the Iraqi state, and the highly imperfect efforts to rebuild it made necessary by the liquidation of virtually all of Saddam Hussein’s institutions by the United States within a matter of weeks.

The level of hubris displayed by the US both before and after the invasion is extraordinary, and on perhaps no issue did the US not do its homework to a more embarrassing degree than the difference between Sunni and Shia muslims. Indeed, President Bush is reported to have been surprised on finding out in 2003 that Iraq had two different kinds of Muslim living in it.

My guest today is Renad Mansour. Renad is a senior research fellow and project director of the Iraq Initiative at Chatham House. He is also a senior research fellow at the American University of Iraq, Sulaimani, and a research fellow at the Cambridge Security Initiative based at Cambridge University. He is also the co-author of Once Upon a Time in Iraq, which has also been made into a BBC television series.