Slavs
Slavs are the largest ethno-linguistic group in Europe. Present-day Slavic people are classified into East Slavs (chiefly Belarusians, Russians, Rusyns, and Ukrainians), West Slavs (chiefly Czechs, Kashubs, Moravians, Poles, Silesians, Slovaks and Sorbs), and South Slavs (chiefly Bosniaks, Bulgarians, Croats, Macedonians, Gorani, Pomaks, Montenegrins, Serbs and Slovenes).
Ukraine
In the 5th and 6th centuries, the Antes were located in the territory of what is now Ukraine. The Antes were the ancestors of Ukrainians: White Croats, Severians, Polans, Drevlyans, Dulebes, Ulichians, and Tiverians. Migrations from Ukraine throughout the Balkans established many Southern Slavic nations. Northern migrations, reaching almost to the Ilmen lakes, led to the emergence of the Ilmen Slavs, Krivichs, and Radimichs, the groups ancestral to the Russians. After an Avar raid in 602 and the collapse of the Antes Union, most of these peoples survived as separate tribes until the beginning of the second millennium.