Adolphus Frederick VI vs Emir of Hadejia

Adolphus Frederick VI became Grand Duke of Mecklenburg-Strelitz on 11 June 1914, succeeding his father Adolphus Frederick V. His reign was brief and overshadowed by World War I.

On 23 February 1918, Adolphus Frederick VI committed suicide at Neustrelitz. His death occurred during World War I, and he was the last grand duke of Mecklenburg-Strelitz, as the monarchy was abolished later that year.

Adolphus Frederick VI's suicide without a direct heir triggered a succession crisis in Mecklenburg-Strelitz. The grand duchy was eventually merged with Mecklenburg-Schwerin after the German Revolution.

Emir of Hadejia ascended to the throne of the Hadejia Emirate, a Fulani state within the Sokoto Caliphate. He inherited a position of authority over a region known for its agricultural wealth and strategic location. His rule aimed to maintain autonomy within the caliphate.

Emir of Hadejia engaged in a border conflict with the Kano Emirate over territorial disputes. The conflict resulted in a stalemate, with neither side gaining significant advantage. The war strained relations between the two emirates and required mediation by the Sokoto Caliph.

Emir of Hadejia led resistance against the British colonial forces under Frederick Lugard. The Hadejia army was defeated at the Battle of Hadejia, and the emir was captured. This defeat led to the incorporation of Hadejia into the British Northern Nigeria Protectorate.