At the same time, Quisling believed that the only way he could win back Hitler's respect would be to raise volunteers for the now-faltering German war effort, and he committed Norway wholeheartedly to German plans to wage total war. For him at least, after the German defeat at Stalingrad in February 1943, Norway now had a part to play in keeping the German empire strong. In April 1943, Quisling delivered a scathing speech attacking Germany's refusal to outline its plans for post-war Europe. When he put this to Hitler in person, the Nazi leader remained unmoved despite Norway's contributions to the war effort. Quisling felt betrayed over this postponement of Norwegian freedom, an attitude that waned only when Hitler eventually committed to a free post-war Norway in September 1943.