He served in World War I as Brigadier-General on the General Staff of the Indian Corps from 1914 , then was appointed General Officer Commanding 8th Division on the Western Front from 31 July 1915 ( in which capacity he led the attack on Ovillers losing 5,400 men ) until 8 December 1916 and was appointed Adjutant General , India from 5 Feb 1917 until 30 October 1920 . Following the Amritsar massacre in 1919 it fell to Hudson , in his capacity as Adjutant-General , to tell Brigadier Reginald Dyer that he was relieved of his command . He went on to be General Officer Commanding-in-Chief , the Eastern Army in India on 1 November 1920 before retiring in 1924
Amritsar massacre
Jallianwala Bagh massacre
Havelock Hudson