is it allowed in islam?

Re: is it allowed in islam?

All true. And like I said, Muslims themselves destroyed the actual single united Muslim nation.

But the point about the Indian Muslim soldiers was that while they were OK to fight against other Muslims (ie the Frontier Corps), surveys in the early 1900s revealed that the majority of them regarded the Ottoman Sultan as being the person they owed their loyalty to, not the British Monarch. The soldiers were not OK with fighting against the Sultan’s men.