 After the First World War began in August 1914 , Agamemnon was assigned to the 5th Battle Squadron in the Channel Fleet and was based at Portland . With other ships , she covered the safe transport of the British Expeditionary Force , under the command of Sir John French , to France . On 14 November 1914 she transferred to Sheerness to guard the English coast against the possibility of a German invasion . She returned to Portland on 30 December 1914 and was employed in the defence of the southern ports of England and patrols of the English Channel until February 1915 . 
