Summer 1944: The Lvov–Sandomierz Offensive was a major Red Army operation to force the German troops from Ukraine and Eastern Poland. The Germans try to repress the Red Army with a combination of large scale attacks and smaller offences. Operation Bagration was the codename for the Soviet 1944 Belorussian Strategic Offensive Operation which cleared German forces from the Belorussian SSR and eastern Poland between 22 June and 19 August 1944. The Wehrmacht attempted to break out of the pocket.