 Complete the following phrase:  His father was Hugh de Fellenberg Montgomery, a landowner and Ulster Unionist politician, and his mother was Mary Sophia Juliana May Montgomery née Maude. The young Montgomery was educated at Charterhouse and at the Royal Military Academy, Woolwich, and then was commissioned a second lieutet into the Royal Field Artillery on 4 November 1891. He was posted to a field battery in India in 1892 and became a lieutet on 4 November 1894. He served with the Royal Field Artillery during the Second Boer War and took part in the 