:Mainly because I didn't really find any sources for the British Indian Army other than brief mentions of their service, which is included in the Great Britain section. On the FAC, you can see we are discussing a possible rearrangement of the sections. The proposal at the moment, to which the reviewer has not yet responded, is to create an overall British Empire section within the cavalry section, which in turn has subsections on Britain, Canada, ANZAC, etc. The United States and Canada were grouped together due to geographic proximity, but I'm willing to change this if I can get some more input from various parties.