▁The ▁withdraw al ▁required ▁several ▁river ▁cross ings ▁using ▁the ▁available ▁boats , ▁and ▁resulted ▁in ▁further ▁losses . ▁The ▁situation ▁was ▁further ▁complicated ▁for ▁the ▁H V ▁but ▁a ▁number ▁of ▁inc idents ▁and ▁factors . ▁These ▁included ▁a ▁t ug bo at ▁to wing ▁a ▁dam aged ▁am ph ib ious ▁vehicle ▁which ▁caught ▁fire ▁because ▁of ▁fault y ▁w iring , ▁ins u fficient ▁fire ▁support ▁from ▁river ▁gun bo ats , ▁and ▁boat ▁cre ws ▁provided ▁by ▁the ▁ 3 4 th ▁Engine er ▁Battalion ▁who ▁refused ▁to ▁cross ▁the ▁river ▁against ▁V RS ▁fire ▁and ▁had ▁to ▁be ▁replaced ▁by ▁cons cript s ▁of ▁the ▁ 3 3 rd ▁Engine er ▁Battalion . ▁Despite ▁H V ▁use ▁of ▁un mann ed ▁aer ial ▁vehicles ▁to ▁locate ▁the ▁V RS ▁guns ▁as ▁targets ▁for ▁counter - b atter y ▁fire , ▁the ▁art illery ▁exchange ▁continued ▁late ▁into ▁the ▁night ▁of ▁ 1 9 / 2 0 ▁September . ▁ ▁The ▁ 5 2 nd ▁Home ▁Guard ▁Regiment ▁battle group ▁crossed ▁the ▁S ava ▁River ▁again ▁at ▁ 1 4 : 3 0 ▁to ▁support ▁the ▁extra ction ▁of ▁the ▁bridge head ▁established ▁by ▁the ▁elements ▁of ▁the ▁ 1 2 1 st ▁and ▁the ▁ 1 2 5 th ▁Home ▁Guard ▁reg iments . ▁That ▁crossing ▁involved ▁ 9 1 ▁soldiers ▁who ▁advanced ▁about ▁ ▁and ▁destroyed ▁several ▁V RS ▁def ensive ▁positions ▁before ▁withdraw ing ▁at ▁ 1 6 : 3 0 . ▁ ▁On ▁ 1