I'm curious. Of course, I do not question the conclusion, but I wonder how much of this is based on Russians or Russian-identifying people being the majority at the time.
I do not really understand the question. In general, the issue of the "prison of nations" (Lenin) I think will show the list of ethnic formations of the Imperial Army.
Infantry:
1st Serbian Infantry Division
- 1st Serbian Infantry Regiment
- 2nd Serbian Infantry Regiment
- 3rd Serbian Infantry Regiment
- 4th Serbian Infantry Regiment
2nd Serbian Infantry Division
- 5th Serbian Infantry Regiment
- 6th Serbian Infantry Regiment
- 7th Serbian Infantry Regiment
- 8th Serbian Infantry Regiment
Polish Rifle Brigade
- 1st Polish Rifle Battalion
- 2nd Polish Rifle Battalion
- 3rd Polish Rifle Battalion
- 4th Polish Rifle Battalion
1st Brigade of the Czechoslovak Legionaries
- 1st Czechoslovak Yan Gus Rifle Regiment
- 2nd Czechoslovak Rifle Regiment
- 3rd Czechoslovak Yan Zyzhka Rifle Regiment
- 4th Czechoslovak Rifle Regiment
Armenian Volunteer Forces (Armenian Rifle Battalions)
+ 1-st detachment Andronicus (1st Armenian Rifle Battalion)
+ 2nd detachment Amazasp (2nd Armenian Rifle Battalion)
+ 3rd detachment Dro (3rd Armenian Rifle Battalion)
+ 4th detachment Keri (4th Armenian Rifle Battalion)
+ 5th detachment (5th Armenian Rifle Battalion)
+ 6th detachment Bejambek (6th Armenian Rifle Battalion)
Georgian Volunteer Forces
+ Kutaisi Volunteer Detachment
+ Tiflis Volunteer Detachment
They are consolidated into the Georgian Rifle Battalion, later the Georgian Rifle Regiment
1st Latvian Rifle Division
+ 1st Ust-Dvinsky Shooting Regiment
+ 2nd Riga Rifle Regiment
+ 3rd Kurzeme Rifle Regiment
+ 4th Vidzeme Rifle Regiment
2nd Latvian Rifle Division
+ 5th Semigall Rifle Regiment
+ 6th Tukkum Rifle Regiment
+ 7th Baucks Rifle Regiment
+ 8th Wolmar Rifle Regiment
Ossetian Rifle Brigade (equated to the Cossacks)
+ 1st Ossetian Rifle Battalion
+ 2-nd Ossetian Rifle Battalion
+ 3rd Ossetian Rifle Battalion
+ 4th Ossetian Rifle Battalion
Cavalry:
Dagestan Horse Regiment (1st Dagestan Horse Regiment )
Ossetian Horse squadron * (Later, the Ossetian Horse Regiment )
The Turkmen Horse squadron * (later the Teke Horse Regiment )
2nd Dagestan Horse Regiment
The Kabardian Horse Regiment
Tatar Horse Regiment
Chechen Horse Regiment
Ingush Horse Regiment
Circassian Horse Regiment
The Polish Ulan squadron * (later the Polish Ulan Regiment)
Armenian volunteer squadron*
* A squadron in the modern American meaning of the term is a battalion.