Steve Rosenberg answers big questions from John Simpson.

John Simpson talks to the BBC’s North America Editor, Sarah Smith, about how the war in Ukraine has transformed American foreign policy.

John Simpson talks to the BBC’s specialist disinformation and social media reporter, Marianna Spring, about how the disinformation war is being waged over the conflict in Ukraine.

In a wide-ranging interview to mark a year since Russia's full-scale invasion of Ukraine, President Zelensky sits down with the BBC's John Simpson in Kyiv. President Zelensky says he won't concede territory to Russia in any future peace deal to end the war and warns Belarus against helping a renewed Russian offensive. He reflects on images of some of the pivotal moments of the conflict and discusses the predicted spring offensive and its impact on Ukrainian forces.