Fill in each blank in the following paragraph with the appropriate words and phrases from the text. When Hitler decided to launch his 1 of Russia, he thought that nothing could ____2______ of his armies. 3 , it seemed, was inevitable. He had surprise on his side, ____4____ Stalin 5 by 6 his attack without a 7 of war. Hitler expected the 8 to last only a few months. In the event, it was to 9 for much longer. Like Napoleon before him, he had made a fatal mistake in failing to ___10_______ the severity of the Russian weather. Many German soldiers were to 11 the cold as winter set in, 12 the German advance 13 .