Dimitrov, St. Kirill Assyrian Church, Ararat Province, Armenia. Armenia is the most homogenous country in the post-Soviet world, with 98% of its citizens identified as ethnic Armenians. Nevertheless, other ethnic groups live in the country, including Russians, Kurds, Greeks, Jews, Ukrainians and Assyrians. Assyrians are indigenous to Mesopotamia, where they have lived for thousands of years. Historically, they were settled mostly in areas that now form modern-day Turkey, Syria and Iraq.