▁from ▁fle eing ▁to ▁Austria . ▁Also ▁by ▁the ▁late ▁ 1 9 5 0 s ▁it ▁was ▁becoming ▁evident ▁that ▁river ine ▁forces , ▁while ▁su ited ▁to ▁pat rol ▁duties ▁on ▁large ▁back country ▁rivers ▁( such ▁as ▁in ▁Africa ▁or ▁South ▁America ), ▁would ▁probably ▁fare ▁poor ly ▁in ▁the ▁cru cible ▁of ▁a ▁full - scale ▁mechan ized ▁war , ▁being ▁particularly ▁vulner able ▁to ▁air ▁forces . ▁ ▁According ly , ▁in ▁ 1 9 5 8 ▁the ▁members ▁of ▁the ▁Wars aw ▁P act ▁signed ▁a ▁resolution ▁where by ▁defense ▁of ▁the ▁Dan ube ▁was ▁given ▁over ▁to ▁the ▁Soviet ▁Navy ' s ▁Dan ube ▁Fl ot illa . ▁In ▁ 1 9 5 9 ▁the ▁Czech oslov ak ian ▁naval ▁forces ▁were ▁dis band ed , ▁and ▁the ▁in land ▁waters ▁security ▁forces ▁were ▁transferred ▁to ▁the ▁Ministry ▁of ▁the ▁Inter ior , ▁forming ▁a ▁naval ▁cont ing ent ▁of ▁the ▁Border ▁Guard ▁Service . ▁ ▁In ▁literature ▁Otto kar ▁Pro h aska , ▁fict ional ▁protagon ist ▁of ▁John ▁Big g ins ' s ▁Otto kar ▁Pro h aska ▁nov els , ▁was ▁for ▁a ▁time ▁Commander ▁in ▁Chief ▁of ▁the ▁Czech oslov ak ▁Dan ube ▁Fl ot illa . ▁ ▁References ▁ ▁Further ▁reading ▁▁▁ ▁Category : Mil it ary ▁of ▁Czech oslov ak ia ▁Category : R iver ine ▁war fare ▁Category : Nav ies ▁by ▁country <0x0A> </s> ▁Pet ra ▁Schw ille ▁( born ▁January ▁ 2 5 , ▁ 1 9