as hansen poised his corps for the breakthrough against the 95th rifle division, 27 ju 87s of ii./stg 77 attacked maxim gorky's main battery. the germans believed the strike had knocked it out as it stopped firing its artillery. the artillery bombardment began on 16 june. in the morning the attack by the reinforced 132nd division collapsed the line. the soviet garrison held out in tunnels, capitulating on 20 june.