Complex sentence: In 1915 Selborne returned to government in the First World War war time coalition of Liberal prime minister H.H. Asquith as President of the Board of Agriculture but resigned the following year.
Split into simpler sentences: In 1915 Selborne returned to government during the First World War in war time coalition of Liberal prime minister H.H. Asquith. He became President of the Board of Agriculture but resigned the following year.