el ay ers ▁were ▁the ▁last ▁war ships ▁to ▁be ▁commission ed ▁by ▁the ▁fl ot illa , ▁the ▁first ▁entering ▁service ▁in ▁ 1 9 3 8 . ▁ ▁The ▁fl ot illa ▁exp ired ▁along ▁with ▁the ▁Republic ▁in ▁ 1 9 3 9 , ▁and ▁President ▁Mas ary k ▁was ▁pressed ▁into ▁service ▁by ▁the ▁Germ ans ▁in ▁World ▁War ▁II . ▁ ▁Post war ▁( Th ird ▁Republic ▁and ▁Social ist ▁Republic ) ▁In ▁ 1 9 4 6 , ▁the ▁ 1 4 th ▁Naval ▁Engine er ▁Battalion ▁was ▁created ▁at ▁Br atis lava , ▁with ▁some ▁min el ay ers ▁and ▁other ▁vessels ▁in ▁its ▁equipment . ▁The ▁largest ▁boat ▁in ▁the ▁naval ▁forces ▁was ▁the ▁former ▁S icher ungs boot ▁ 4 3 ▁( ), ▁inherited ▁from ▁the ▁Germ ans . ▁This ▁vessel ▁was ▁armed ▁with ▁a ▁ ▁gun ▁in ▁a ▁Pan zer ▁IV ▁medium ▁tank ▁tur ret , ▁and ▁four ▁ 2 0 mm ▁anti - air craft ▁guns . ▁ ▁In ▁ 1 9 5 0 ▁the ▁ 5 2 nd ▁Mar itime ▁Regiment ▁was ▁formed ▁at ▁Br atis lava , ▁and ▁the ▁ 1 4 th ▁Naval ▁Engine er ▁Battalion ▁was ▁sub sum ed ▁into ▁this ▁unit . ▁Further ▁re organ ization ▁occurred ▁in ▁ 1 9 5 7 . ▁By ▁this ▁time ▁it ▁was ▁clear ▁that ▁the ▁main ▁issue ▁facing ▁naval ▁forces ▁on ▁the ▁Czech oslov ak ian ▁Dan ube ▁was ▁not ▁defense ▁against ▁external ▁ag gression , ▁but ▁prevent ing ▁citizens