The Army of the North of Peru or Restoration Army of Peru was the army of the Northern Peruvian Republic that was made up of Peruvians opposed to the establishment of the Peru-Bolivian Confederation, who accused Bolivian President Andrés de Santa Cruz of having invaded and divided Peru with the support of Peruvian President Luis José de Orbegoso whom his opponents did not recognize as legitimate.

The goal of the army was to restore the united Peruvian state prior to the establishment of the Confederation.

[1] The first person to use the name was General Felipe Santiago Salaverry during the war against Santa Cruz and Orbegoso.

Upon his defeat and death, the command passed to Marshal Agustín Gamarra, with the title of Provisional President of the Peruvian Republic.

The defeat of the Peru-Bolivian Confederation occurred in the town of Villa de Yungay, in the Department of Huaylas on January 20, 1839.