On 23rd August 1939, Vyacheslav Molotov and Joachim von Ribbentrop – the Soviet foreign minister and the German foreign minister – signed the Treaty of Non-aggression between Germany and the Union of Soviet Socialist Republics, otherwise known as the Nazi-Soviet Pact.

The last execution at the Tower of London took place on the 15th August 1941. Josef Jakobs was a German spy who was arrested after he signalled for help after breaking his ankle when he parachuted into Britain.

Find out more at http://www.josefjakobs.info/