ont y ▁took ▁place ▁on ▁ 2 1 ▁August ▁ 1 9 4 4 . ▁It ▁is ▁regarded ▁as ▁the ▁first ▁cl ash ▁between ▁Polish ▁Home ▁Army ▁and ▁regular ▁forces ▁of ▁the ▁Red ▁Army , ▁supported ▁by ▁the ▁NK VD . ▁It ▁occurred ▁in ▁for ests ▁near ▁the ▁village ▁of ▁Sur k ont y , ▁ ▁n ortheast ▁of ▁G rod no , ▁on ▁the ▁territory ▁of ▁Bel arus , ▁and ▁resulted ▁in ▁Polish ▁defeat . ▁The ▁S ovi ets ▁lost ▁ 1 3 2 ▁men ▁K IA , ▁while ▁Polish ▁losses ▁were ▁ 3 5 ▁K IA ▁( including ▁local ▁command ant , ▁Colonel ▁Mac iej ▁“ K ot w icz ” ▁Kal enk ow icz ) ▁and ▁ 1 ▁W IA . ▁ ▁In ▁late ▁June ▁ 1 9 4 4 , ▁the ▁unit ▁of ▁Kot w icz ▁left ▁the ▁area ▁of ▁G rod no , ▁and ▁head ed ▁east wards , ▁to ▁join ▁Home ▁Army ▁forces ▁from ▁St ol p ce ▁in ▁order ▁to ▁fight ▁together ▁in ▁Operation ▁O stra ▁Br ama . ▁On ▁ 1 3 ▁July ▁the ▁Home ▁Army ▁of ▁the ▁area ▁of ▁Wil no , ▁together ▁with ▁the ▁Red ▁Army , ▁fre ed ▁the ▁city . ▁So on ▁afterwards , ▁the ▁NK VD ▁began ▁arrest ing ▁Polish ▁soldiers , ▁and ▁as ▁a ▁result ▁of ▁this ▁action , ▁local ▁headquarters ▁of ▁Home ▁Army ▁ordered ▁all ▁men ▁to ▁withdraw ▁to ▁the ▁coun tr ys ide . ▁ ▁On ▁ 1 8 ▁July , ▁at ▁the ▁edge ▁of ▁Rud nik