Here are five military chaplains who have gone down in history:

1. Fr William Doyle

William Joseph Gabriel Doyle was born in Dublin, in Ireland on March 3 1873.

The youngest of seven children, Fr Doyle was 18 years old when he entered the Jesuit novitiate. He was ordained in 1907.

From a young age, Fr Doyle was renowned as a great preacher, successfully persuading the most resistant people to go to Confession.

During World War I, Fr Doyle served in the Army Chaplains' Department of the British Army, appointed as a chaplain to 48 Brigade of the 16th Irish Division.