Hitler also wanted to forestall any move by leaders of the Reichswehr , the German military , who both feared and despised the SA , to curtail his rule , especially since RÃ hm made no secret of his ambition to absorb the Reichswehr with himself at its head . He also wanted to conciliate leaders of the Reichswehr , the official German military who both feared and despised the SA -- in particular RÃ hm 's ambition to absorb the Reichswehr into the SA under his own leadership .