In the latest Rapid Reaction, Iain Martin talks to Prince Friedrich Zu Solms-Baruth, grandson of Prince Friedrich Zu Solms-Baruth – the man who played a central role in the plot to kill Hitler on 20 July 1944, better known as Operation Valkyrie.

Prince Friedrich has been engaged in 33 year long campaign to have grandfather recognised for his role in Operation Valkyrie, after he had allowed the plotters to meet at the back of his house.