0 ▁rail ▁cars ▁" w ag ony ", ▁and ▁ble w ▁up ▁ 3 8 ▁rail ▁brid ges , ▁not ▁to ▁mention ▁the ▁attacks ▁against ▁the ▁rail ▁roads . ▁The ▁Home ▁Army ▁was ▁also ▁responsible ▁for ▁ 4 , 7 1 0 ▁built - in ▁fla ws ▁in ▁parts ▁for ▁aircraft ▁engines ▁and ▁ 9 2 , 0 0 0 ▁built - in ▁fla ws ▁in ▁art illery ▁project iles , ▁among ▁other ▁examples ▁of ▁significant ▁sab ot age . ▁In ▁addition , ▁over ▁ 2 5 , 0 0 0 ▁acts ▁of ▁more ▁minor ▁sab ot age ▁were ▁committed . ▁It ▁continued ▁to ▁fight ▁against ▁both ▁the ▁Germ ans ▁and ▁the ▁S ovi ets ; ▁however , ▁it ▁did ▁aid ▁the ▁Western ▁Al lies ▁by ▁collect ing ▁constant ▁and ▁detailed ▁information ▁on ▁the ▁German ▁rail , ▁whe e led , ▁and ▁horse ▁trans ports . ▁As ▁for ▁St alin ' s ▁pro x ies , ▁their ▁actions ▁led ▁to ▁a ▁great ▁number ▁of ▁the ▁Polish ▁and ▁Jewish ▁host ages , ▁mostly ▁civ ili ans , ▁being ▁murder ed ▁in ▁repr is al ▁by ▁the ▁Germ ans . ▁The ▁G ward ia ▁Lud owa ▁destroyed ▁around ▁ 2 0 0 ▁German ▁trains ▁during ▁the ▁war , ▁and ▁ind isc rimin ately ▁threw ▁hand ▁gr en ades ▁into ▁places ▁frequ ented ▁by ▁Germ ans . ▁ ▁The ▁French ▁Res istance ▁ran ▁an ▁extremely ▁effective ▁sab ot age ▁campaign ▁against ▁the ▁Germ ans ▁during ▁World ▁War ▁II . ▁Rece iving ▁their ▁sab ot age ▁orders