▁there ▁was ▁no ▁escape ▁because ▁the ▁Chinese ▁commun ist ▁forces ▁had ▁control ▁of ▁the ▁mid ▁and ▁lower ▁stretch ▁of ▁the ▁Yang t ze . ▁So on , ▁two ▁gun bo ats ▁sa iled ▁down stream ▁and ▁defect ed ▁to ▁the ▁enemy . ▁Not ▁wanting ▁the ▁remaining ▁five ▁boats ▁to ▁be ▁destroyed , ▁the ▁commander ▁of ▁the ▁RO CN ▁R DF ▁R ear ▁Admir al ▁Ye ▁Yu he ▁( <0xE5> <0x8F> <0xB6> <0xE8> <0xA3> <0x95> 和 ) ▁led ▁the ▁rem nant ▁of ▁the ▁defect ed ▁force ▁to ▁the ▁enemy ▁on ▁November ▁ 3 0 , ▁ 1 9 4 9 . ▁ ▁PL AN ▁renamed ▁the ▁boat ▁to ▁Yang t ze , ▁and ▁the ▁arm ament ▁was ▁subsequently ▁changed ▁to ▁four ▁ 4 0   mm ▁and ▁four ▁ 2 0   mm ▁guns . ▁The ▁gun bo at ▁remained ▁in ▁PL AN ' s ▁service ▁until ▁ 1 9 8 2 ▁when ▁it ▁finally ▁retired . ▁The ▁importance ▁of ▁Yang t ze ▁in ▁the ▁history ▁of ▁PL AN ▁is ▁apparent ▁when ▁one ▁cons iders ▁that ▁in ▁February ▁ 1 9 5 2 , ▁Ma o ▁Z ed ong ▁was ▁on ▁board ▁for ▁four ▁days ▁and ▁three ▁night s ▁inspect ing ▁PL AN . ▁While ▁on ▁board ▁the ▁Yang t ze , ▁Ma o ▁wrote ▁down ▁the ▁phrase : ▁” In ▁order ▁to ▁resist ▁imperial ists ’ ▁ag gression , ▁we ▁must ▁establish ▁a ▁strong ▁n avy ", ▁which ▁subsequently ▁became ▁the ▁mot to ▁for ▁the ▁establishment ▁of ▁PL AN . ▁For ▁this ▁reason