By the end of WW1 over one million Indian men served the army overseas. Forgot for quite some time. A lot of British Slang was swapped in the trenches.
Junior Officers were the cornerstone of the Ottoman force's command structure.
Equipped with a Lewis gun. They could hold back most things.
New recruits travelled from the colony to the front.
Hardened sepoys, who are experienced with conflict, but not trench warfare.
Like all armies, their non-commissioned officers are leading troops, and advising the officers.