Rubuta ci gaba don wannan sakin layi - Duk da haka, a ranar 20 ga Janairu, 1839, sojojin da ke mayar da Chilean Manuel Bulnes da Peruvian Agustín Gamarra sun sami nasarar Yungay a kan Santa Cruz a lokacin yakin Confederation
, wanda ya kawo karshen Peru-Bolivian Confederation. A ranar 14 ga Fabrairu, 1839, Janar Velasco, sabon shugaban Bolivia, ya sanar da gwamnan Jujuy game da ƙarshen yanayin yaƙi kuma ya nuna cewa yana son yin shawarwari game da matsalar Tarija. A ranar 26 ga Afrilu, 1839, Janar Rosas ya kawo ƙarshen yaƙin ba tare da yin amfani da rashin nasarar Santa Cruz don ci gaba da Tarija ba, yana ba su damar yanke shawara kan batun. Sun kasance a gefen Bolivia. Bolivia ta dawo da yankin Puna de Jujuy, Iruya da sauran mutanen da aka mamaye a watan Maris na 1839.