candidate: Given the limited resources available , Zhukov decided to concentrate his forces at four critical points : the 16th Army under Lieutenant General Rokossovsky guarded Volokolamsk , Mozhaisk was defended by 5th Army under Major General Govorov , the 43rd Army of Major General Golubev defended Maloyaroslavets , and the 49th Army under Lieutenant General Zakharkin protected Kaluga .