The Crusader-Era Knights Who Volunteered to Fight World War I
Less than a year after the Russian Empire entered World War I, a band of Georgian men came down from the Caucasus Mountains. Dressed in chain armor and wielding shields and broadswords, they rode to the governor's house in modern-day Tbilisi and asked, "Where's the war?" At the onset of World War I, the Russian Empire was massive. It stretched from the Pacific Ocean in the east to what is today Finland in the west. It also encompassed most of the Caucasus regions, including the area where Georgia and Armenia are today.
Source: military.com