After outmanoeuvring the Allies in Belgium and forcing the evacuation of many British and French troops at Dunkirk, France fell as well, surrendering to Germany on 22 June. As part of the drive to remove Jewish influence from cultural life, members of the National Socialist Student League removed from libraries any books considered un-German, and a nationwide book burning was held on 10 May. In addition to Hitler's stated purpose of acquiring Lebensraum, this large-scale offensivecodenamed Operation Barbarossa was intended to destroy the Soviet Union and seize its natural resources for subsequent aggression against the Western powers. German soldiers march near the Arc de Triomphe in Paris, The Nazis seized from the French thousands of locomotives and rolling stock, stockpiles of weapons, and raw materials such as copper, tin, oil, and nickel. In this way Germany became a de facto unitary state, with all state governments controlled by the central government under the nsdap. These partially fulfilled plans resulted in the democidal deaths of an estimated.3 million civilians and prisoners of war (POWs).