▁were ▁requ is ition ed ▁by ▁the ▁US ▁Navy ▁in ▁the ▁context ▁of ▁the ▁conflict ▁and ▁then ▁retained . ▁The ▁Tir p itz , ▁whose ▁construction ▁was ▁delayed ▁by ▁the ▁out break ▁of ▁war ▁eventually ▁became ▁the ▁R MS ▁Em press ▁of ▁Australia . ▁Of ▁the ▁German ▁super lin ers , ▁only ▁Deutschland , ▁because ▁of ▁her ▁poor ▁state , ▁avoided ▁this ▁fate . ▁ ▁After ▁World ▁War ▁I ▁ ▁After ▁a ▁period ▁of ▁reconst ruction , ▁the ▁sh ipping ▁companies ▁recovered ▁quickly ▁from ▁the ▁damage ▁caused ▁by ▁the ▁First ▁World ▁War . ▁The ▁ships , ▁whose ▁construction ▁was ▁started ▁before ▁the ▁war , ▁such ▁as ▁SS ▁Paris ▁of ▁the ▁French ▁Line , ▁were ▁completed ▁and ▁put ▁into ▁service . ▁Prom inent ▁British ▁lin ers , ▁such ▁as ▁the ▁Olympic ▁and ▁the ▁Ma ure t ania , ▁were ▁also ▁put ▁back ▁into ▁service ▁and ▁had ▁a ▁successful ▁career ▁in ▁the ▁early ▁ 1 9 2 0 s . ▁More ▁modern ▁lin ers ▁were ▁also ▁built , ▁such ▁as ▁ ▁( comple ted ▁in ▁ 1 9 2 7 ). ▁The ▁United ▁States ▁L ines , ▁having ▁received ▁the ▁Vater land , ▁renamed ▁her ▁Le vi athan ▁and ▁made ▁her ▁the ▁flags hip ▁of ▁the ▁company ' s ▁fleet . ▁Because ▁all ▁U . S . ▁registered ▁ships ▁counted ▁as ▁an ▁extension ▁of ▁U . S . ▁territory , ▁the ▁National ▁Pro hib ition ▁Act ▁made ▁American ▁lin ers ▁alco hol - free , ▁causing ▁alco hol - se ek ing ▁passengers ▁to ▁choose