The US-Israeli strikes on Iran have unleashed huge uncertainty for the Middle East and the world. What happens next is impossible to predict. But we can analyze the central factors at play, such as the goals of the warring parties, and the constraints they face in trying to achieve them. DW’s Richard Walker puts these factors under the microscope in this special interview with Nicole Grajewski of the Carnegie Endowment for International Peace and Sciences Po university – who has watched Iran