▁ ▁Service ▁history ▁Ass igned ▁to ▁the ▁Pacific ▁Squadron , ▁Moh ongo ▁depart ed ▁Brook lyn ▁on ▁ 2 9 ▁May ▁ 1 8 6 5 ▁for ▁the ▁west ▁coast ▁of ▁South ▁America . ▁S ail ing ▁via ▁St . ▁Thomas , ▁Barb ados , ▁Natal , ▁Rio ▁de ▁Janeiro , ▁and ▁Monte video , ▁making ▁official ▁protocol ▁vis its ▁to ▁those ▁Car ib bean ▁and ▁Latin ▁American ▁ports , ▁the ▁" double ‑ ender " ▁ste amed ▁through ▁the ▁Stra it ▁of ▁Mag ellan ▁in ▁a ▁severe ▁g ale ▁on ▁ 9 ▁October ▁and ▁arrived ▁at ▁Val para í so , ▁Chile , ▁on ▁the ▁ 2 9 th . ▁She ▁remained ▁there ▁repair ing ▁her ▁storm - dam aged ▁p umps ▁and ▁bo ilers ▁until ▁standing ▁out ▁on ▁ 2 7 ▁April ▁ 1 8 6 6 ▁for ▁Cal la o , ▁Peru . ▁Ar riv ing ▁six ▁days ▁later , ▁the ▁war ship ▁joined ▁R ear ▁Ad m . ▁George ▁F . ▁Pear son ' s ▁Pacific ▁Squadron ▁in ▁the ▁midst ▁of ▁a ▁Spanish ▁block ade ▁during ▁the ▁Per uv ian ▁War ▁with ▁Spain ▁over ▁conditions ▁of ▁the ▁treat y ▁recogn izing ▁Peru ' s ▁independence . ▁Moh ongo ▁remained ▁at ▁Cal la o ▁with ▁the ▁rest ▁of ▁the ▁squad ron , ▁protect ing ▁American ▁lives ▁and ▁property ▁from ▁attack ▁by ▁either ▁side ▁until ▁depart ing ▁on ▁ 2 1 ▁May ▁for ▁a ▁month ' s ▁cru ise ▁up ▁the ▁coast ▁of ▁South ▁America ▁to ▁Gu aya qu il ,