▁to ▁the ▁ 1 st ▁Far ▁East ▁Front . ▁It ▁had ▁as ▁part ▁of ▁its ▁structure ▁the ▁ 6 6 th , ▁ 2 6 4 th ▁and ▁ 3 6 3 rd ▁R if le ▁Div isions , ▁the ▁ 8 th ▁and ▁ 1 0 9 th ▁Fort ified ▁Reg ions , ▁the ▁ 1 2 5 th , ▁ 2 0 8 th , ▁and ▁ 2 0 9 th ▁T ank ▁Brig ades , ▁and ▁a ▁number ▁of ▁art illery ▁and ▁other ▁units . ▁With ▁these ▁forces ▁the ▁army ▁participated ▁in ▁the ▁Har bin - K ir in ▁Off ensive ▁Operation ▁during ▁the ▁Soviet ▁invasion ▁of ▁Man ch uria . ▁▁ ▁During ▁the ▁Har bin - K ir in ▁Off ensive , ▁the ▁army ▁was ▁task ed ▁with ▁attack ing ▁from ▁positions ▁south west ▁of ▁Les oz av od sk ▁towards ▁M ish an . ▁The ▁army ▁was ▁to ▁defeat ▁elements ▁of ▁the ▁K w ant ung ▁Army ▁on ▁the ▁left ▁bank ▁of ▁the ▁Song ach a ▁River ▁and ▁capture ▁the ▁H ut ou ▁Fort ified ▁Area . ▁Part s ▁of ▁the ▁army ▁were ▁assigned ▁to ▁defend ▁the ▁right ▁bank ▁of ▁the ▁U ss uri ▁ ▁and ▁Song ach a ▁R ivers , ▁as ▁well ▁as ▁def ending ▁rail ways ▁and ▁roads ▁in ▁the ▁G uber ovo ▁and ▁Sp ass k - D al ny ▁areas . ▁At ▁the ▁beginning ▁of ▁the ▁off ensive , ▁the ▁army ▁crossed ▁the ▁U ss uri ▁and ▁Song ach a ▁R ivers ▁using