UGalvarino wayeyiqhawe elikhulu lamaMapuche elanamathisela izindwani ezingalweni zakhe ezinqunyiwe eMpini yaseMillarapue; ebonisa isibindi esingapheli, walwa namabutho anamandla aseSpain.
Le ndaba eyisakhiwo sodumo yenzeka emlandweni ngesikhathi seMpi ye-Arauco, okwakuyingxabano eyathatha isikhathi eside phakathi kwabaseSpain abangamakoloni kanye namaMapuche. Ukungqubuzana kwaqala ngo-1536 kuya ku-1810, futhi kuliwa kakhulu esifundeni sase-Araucanía eChile.
Ekuqaleni kwempi, uCaupolican, umholi wempi omkhulu wamaMapuche, wayehole abantu bakhe ukuba balwe nabanqobi baseSpain abahlasela yonke indawo (manje eseChile) phakathi nekhulu le-16.
Ngaleso sikhathi, kwakukhona elinye iqhawe leMapuche elidumile okuthiwa uGalvarino, elabamba iqhaza elikhulu ekuqaleni kweMpi Yase-Arauco. Indaba yakhe yesibindi yaqala eMpini YaseLagunillas, lapho alwa khona nombusi waseSpain uGarcía Hurtado de Mendoza futhi wathathwa njengesiboshwa kanye namanye amasosha angama-150 angamaMapuche ngoNovemba 8, 1557.
Isijeziso sokuvukela umbuso sasiwukuthotshiswa ngendlela yokunqunywa isandla sokudla kanye/noma ikhala kwezinye iziboshwa. UGalvarino namanye amasosha angamaMapuche, ayenolaka kakhulu, anqunywa izandla zombili. Ngemva kwalokho, bakhululwa njengesifundo nendaba eyisixwayiso kubo bonke abantu baseMapuche.
Ngemva kokubuyela eMapuche, uGalvarino wavela phambi komholi wabo wempi uCaupolicán nomkhandlu wezempi, ebabonisa izandla zakhe ezicwiyiwe ekhalela ubulungisa. Wafuna ukukhuphuka okukhulu kwamaMapuche ngokumelene nabahlaseli baseSpain abafana noLautaro okwathi, ngoDisemba 1553, wahola amaqhawe amaMapuche ochungechungeni lokunqoba ngokumelene nebutho elinamandla laseSpain empini yangaphambili eyaziwa ngokuthi iMpi yaseTucapel; lapho kwabulawa khona umnqobi waseSpain nombusi wokuqala wasebukhosini waseChile, uPedro de Valdivia.
Ngobuqhawe nobuqhawe bukaGalvarino, waqanjwa umkhandlu ukuthi alawule ithimba lamasosha. Ngaphandle kokulinda ukupholiswa kwamanxeba akhe, waphinde waba sempini kusukela ngakusasa eboshelwe imimese kuzo zombili izicucu ezingalweni zakhe ezazicwiywe. Walwa eduze kwaseCaupolicán emkhankasweni olandelayo kwaze kwaba seMpini YaseMillarapue, eyayizokwenzeka phakathi nezinsuku ezimbalwa ezizayo, ngoNovemba 30, 1557. Lapho ibutho likaGalvarino lalizolwa namabutho oMbusi uMendoza. Okumangazayo ukuthi izandla ezazilimele, uGalvarino wakwazi ukushaya u-Eric Demand owayeyinombolo yesibili kuMendoza.
Kodwa-ke, amasosha aseSpain aphule isigaba sikaGalvarino ngemuva kokuchitha amahora anzima empini futhi anqoba impi ebulala amaqhawe angama-Mapuche angu-3,000, athumba angaphezu kuka-800 kuhlanganise noGalvarino. UMendoza wayala ukuba abulawe ngalolo suku ngokujikijelwa ezinjeni ezinolaka. Nakuba u-Alonso de Ercilla echaze encwadini yakhe ethi '.La Araucana' ukuthi ukufa kwangempela kukaGalvarino kwaba ngokulengiswa.
Kucace bha ukuthi uGalvarino wehluliwe ngenxa yosizi lwakhe lomzimba kanye neqhinga lempi elingcono lesitha nezinhlelo zezikhali ezithuthukile. Kodwa, empeleni, uMendoza wanqotshwa isibindi esikhulu saseGalvarino, mhlawumbe uMendoza naye wakubona.
