Buuxi weedha soo socota: Isbahaysiga Peru iyo Bolivia waxaa ka soo horjeestay dalalka deriska ah tan iyo markii la aasaasay, gaar ahaan Chile iyo Argentina, iyagoo u arka inay yihiin halis militari iyo dhaqaale oo suurtagal ah, iyo taageerada ay u hayaan mucaaradka ku jira masaafurinta. Waxyaabaha
Dagaalkii Isbaheysiga ayaa bilowday wax yar ka dib markii la aasaasay markii Chile iyo Argentina ay si madaxbanaan u soo galeen dalka. Argentina waxaa laga adkaaday 1837, laakiin ciidan isku dhafan oo ka kala socda Chile iyo Waqooyiga Peru oo loo yaqaan Ciidanka Dib-u-soo-celinta Midowday ayaa ku guuleystay Dagaalkii Yungay bishii Janaayo 1839, kaas oo "de facto" ku soo afjaray isbaheysiga maadaama Peru iyo Bolivia loo soo celiyay inay yihiin dowlado madax-bannaan, Santa Cruz-na wuxuu u cararay masaafurinta. Isbaheysiga Peru-Bolivia waxaa si rasmi ah loogu dhawaaqay in la kala diray Ogosto 25, 1839, General Agustín Gamarra kadib markii loo magacaabay Madaxweynaha Peru.