David Olusoga's recent documentary The World's War challenged perceptions of WW1 with stories of the millions of Indian, African and Asian troops who fought and died alongside white European troops. Using letters and diaries writer-director Dominic Rai brings to life the experiences of Indian soldiers in Flanders, revealed in the acclaimed novel Across the Black Waters by Mulk Raj Anand.

The dead lie in heaps.
England is full of wounded.
No man can return to the Panjab whole.
Only the broken-limbed can go back.

The regiments that came first are finished.

Giyan Singh to his brother in India, April 1915. From Milford on Sea.