 In the east, they had stabilised their front in a line running from Leningrad in the north to Rostov in the south.There were a number of salients, but these were not particularly threatening.Hitler was confident that he could master the Red Army after the winter of 1942, because even though Army Group Centre ("Heeresgruppe Mitte") had suffered heavy losses west of Moscow the previous winter, 65% of its infantry had not been engaged and had been rested and re-equipped.