The Seventh German Inner Africa Research Expedition (codenamed HIDDEK) was led by German ethnologist and archaeologist Leo Frobenius in October 1914-March 1915. Though referred to as the seventh of Frobenius' scientific expeditions to Africa it was a front for a German military espionage mission to Ethiopia. The objective was to restore communications with the German legation at Addis Ababa; persuade Ethiopian Emperor Lij Iyasu to support the Central Powers in the First World War and to proceed to Anglo-Egyptian Sudan to provoke an uprising there. This could have threatened British and Italian colonies in Eastern Africa and possibly the vital supply route of the Suez Canal.