How could colonies a mother country military

Good Morning!

The aid that a colony can give its metropolis with regard to military matters can be obtained in several ways: payment of taxes and fees, supply of raw materials and supply of troops. An example of the use of colonial troops was the participation of Indian soldiers in the Great World Wars, when the country was still under English rule.

Hugs!

from the conditions of the working class in england by friedrich engels,the main idea is :

manchester's leaders hoped to oppress its working class to benefit factory owners.