Soviet soldiers walk and drive past a burning T-34 medium tank during the Battle of Kursk, Russia, July 1943. Although the conflict between the Soviet and German forces barely lasted two months it is considered the largest armoured engagement in history. (Photo by Hulton Archive/Getty Images)

A Photograph of Soldiers from the 21st Army and Stalingrad's Defenders meeting and Embracing the 62nd Army, January 26th, 1943. (Photo by Fotosearch/Getty Images)

27th March 1944: Three German soldiers covered in snow and ice during winter on the Eastern front. (Photo by Hulton Archive/Getty Images)

September 1943: Members of the Wehrmacht try to budge a German staff car which has become stuck on a flooded road on the Dnieper Front between Russia and Poland. (Photo by Keystone/Getty Images)

March 1944: Two Nazis, retreating westwards, try to clear a path for their car stuck in mud on the Russian road. 'General Mud' had proved a great enemy to the Nazis on the Eastern Front, whether advancing, as in 1941, or retreating, as in 1944. (Photo by Keystone/Getty Images)

circa 1943: A lone German soldier hobbles round a waterlogged crater in which are reflected the devastated buildings of Stalingrad. (Photo by Keystone/Getty Images)

circa 1943: A serpentine line stretches to the far horizon as German soldiers routed from their last forts in the vicinity of Stalingrad, are marched to prison camps. The stone blocks mark fortifications that had been blasted by Russian artillery. Trucks and artillery are part of the loot. (Photo by Keystone/Getty Images)

circa 1944: Germans in the Crimea making their escape from the approaching Russians. (Photo by Keystone/Getty Images)

1944: The German army retreating from Russian forces across the last crossable bridge over the Dneiper (Dnepr) river, the other bridges having been blown up by German engineers. (Photo by Keystone/Getty Images)

1943: Fire breaks out during the Warsaw Uprising in Poland, a Polish insurrection against the German forces who had occupied Poland at the start of World War II. By 1944 Warsaw was the centre of Polish resistance, but the army was forced to surrender on October 2nd 1944 under pressure from German air raids. (Photo by Keystone/Getty Images)

1944: A soldier from the Polish Home Army keeps watch over ruins streets during the Warsaw Uprising of August to October 1944. Original Publication: Picture Post - 9259 - Pictures From The Grave - pub.1957 (Photo by Picture Post/Hulton Archive/Getty Images)

German civilian prisoners captured by the patriots during the uprising in Warsaw, when the Polish Home Army rose against the Nazis. (Photo by Keystone Features/Getty Images)

October 1944: Sick and starved people emerge from basements and sewers in Warsaw, two months after the start of the Warsaw Uprising against the occupying German forces. As a result, thousands of the city's inhabitants were killed or sent to concentration camps, and the city destroyed. (Photo by Keystone/Getty Images)