File:Christian Armenian volunteers and soldiers.jpg

Summary
http://lcweb2.loc.gov/ WWI image collection - The New York Times, January 24, 1915

Battalion of Russian soldiers massed at the Russian religious mission in the Caucasus foothills (which is located in the Ottoman Empire) to await a Kurd attack." The detail: "Native Christian converts of the mission have assembled to help them."

The small group with on the left with scarf was Turkish (Muslim) civilians. The group of civilian Christians on the right was the Armenians that have assembled to help them.