Battle of Stalingrad away from the oil-rich Caucasus, which had been Hitler's original grand-strategic objective. The Royal Romanian Air Force was also involved in the Axis air operations at Stalingrad. Starting 23 October 1942, Romanian pilots flew a total of 4,000 sorties, during which they destroyed 61 Soviet aircraft. The Romanian Air Force lost 79 aircraft, most of them captured on the ground along with their airfields. After three months of slow advance, the Germans finally reached the river banks, capturing 90% of the ruined city and splitting the remaining Soviet forces into two narrow pockets. Ice floes on the Volga now prevented
History of the Russian language in Ukraine settlers onto what became Ukrainian territory came in the late 16th century to the area known as Slobozhanschyna or Sloboda Ukraina, in what is now northeastern Ukraine. This territory was settled after being abandoned by the Tatars. Russian settlers however were outnumbered by Ukrainian settlers who were escaping harsh exploitative conditions in the west. More Russian speakers appeared in the northern, central and eastern territories that are now Ukraine during the late 17th century, following the Cossack Rebellion (1648–1657) which Bohdan Khmelnytsky led against Poland. The Khmelnytsky Uprising led to a massive movement of Ukrainian settlers to the Slobozhanschyna region,