Professor Brendan Simms and Dr Charlie Laderman introduce their latest book, Hitler's American Gamble, which shows mistrust and uncertainty in decision-making between allies and adversaries in the five days between Japan's bombing of Pearl Harbour and Hitler's declaration of war on the USA.---The hosts:Suzanne Raine is an Affiliate Lecturer at the Centre for Geopolitics at Cambridge University. She served for 24 years in the British Foreign and Commonwealth Office on foreign policy and national security issues, including postings in Poland, Iraq and Pakistan. She specialised in counter-terrorism and was a senior member of the UK government assessment community. She is also a member of the Board of Trustees of the Imperial War Museum and the Royal United Services Institute (RUSI).Ali Ansari is professor of Iranian History and Founding Director of the Institute for Iranian Studies at the University of St Andrews in the UK. He is also Senior Associate Fellow at the Royal United Services Institute.