WW1: How British colonies helped war effort
Tuesday marks the centenary of a key World War One battle in Northern France - when allied troops launched a major offensive around the town of Neuve Chapelle.
Half of the attacking force was made up of troops from the Indian army - fighting alongside the British.
During the course of the war an estimated four million colonial soldiers, porters and labourers served the Allied cause many of them from India.
Reeta Chakrabarti reports.
09 Mar 2015