Despite the intensity of the US-Israel bombing campaign, Iran’s regime, now under a new supreme leader, hasn’t given President Donald Trump the “unconditional surrender” he’s seeking.

Mishal Husain speaks with Vali Nasr, a professor at Johns Hopkins University’s School of Advanced International Studies and a preeminent scholar on the Islamic Republic. His life has been shaped by the story of Iran over the last 50 years, starting when his family fled amid the 1979 revolution.

His life’s work has been to study the region and its relationship with the US. He’s also worked  as an adviser to the US State Department during the Obama administration.

Nasr explains why Tehran believes time is on its side in the war, and that a prolonged conflict may only strengthen Iranian nationalism.