Ka cika wannan jumla: A ranar 24 ga Fabrairu, 1880, mazaje wajen 11,000 a cikin jirgi 19, da "Blanco Encalada", "Toro", da "Magallanes" da kuma jiragen ruwa biyu, suka tashi daga Pisagua. Bayan kwana biyu, a ranar 26 ga Fabrairu, 'yan Chile sun isa Punta Coles, kusa da Pacocha, Ilo. Saukowa ya ɗauki kwanaki da yawa don kammalawa amma bai fuskanci juriya ba. Kwamandan Peruvian, Lizardo Montero, ya ƙi ƙoƙarin fitar da 'yan Chile daga bakin teku, kamar yadda' yan Chile suka yi tsammani. A ranar 22 ga Maris, sojojin Chile 3,642 sun ci sojojin Peruvian 1,300 a yakin Los Ángeles, suna yanke duk wani jigilar Peruvian kai tsaye daga Lima zuwa Arica ko Tacna (wadata yana yiwuwa ne kawai ta hanyar hanya mai tsawo, ta hanyar Bolivia). Bayan yakin Los Ángeles, wurare uku ne kawai suka rage a kudancin Peru: Janar Leyva na 2nd a Arequipa (ciki har da wasu wadanda suka tsira daga Los Ángeles), Bolognesi na 7th da 8th a Arica, kuma a Tacna na 1st Army. Wadannan sojojin suna karkashin umarnin kai tsaye na Campero. Duk da haka, lambobin sun tabbatar da cewa ba su da ma'ana, kamar yadda Peruvians ba su iya tattara dakarun ba ko ma su motsa daga garinsu. Bayan tsallaka hamada, a ranar 26 ga Mayu sojojin Chile (14,147 maza) sun hallaka sojojin da ke da alaƙa da Bolivians 5,150 da Peruvians 8,500 a cikin
Yaƙin Tacna. Bukatar tashar jiragen ruwa kusa da sojojin don samarwa da karfafa sojojin da kuma kwashe wadanda suka ji rauni ya tilasta wa umarnin Chilean ya mai da hankali kan ragowar sansanin soja na Peru na Arica. A ranar 7 ga Yuni, bayan Yaƙin Arica, sansanin soja na ƙarshe na Peru a Ma'aikatar Tacna ya faɗi. Bayan kamfen na Tacna da Arica, sojojin dindindin na Peru da na Bolivia sun daina wanzuwa, kuma Bolivia ta fice daga yakin.