Flag of Peru which joined Bolivia to form the Peru–Bolivian Confederation. The South was formed first, thus adopting a new flag: a red vertical band on the left, with a golden sun and four small stars above (representing Arequipa, Ayacucho, Cuzco and Puno, the four groups of the republic), and the right side divided into an upper green band and a lower white one. The North kept the currency and all ---- of the dissolved Peru, including its flag. The flag of the Peru-Bolivian Confederation showed the coats of arms of Bolivia, South and North Peru, from left to right and slanted at
Peru the early 1900s. Internal struggles after the war were followed by a period of stability under the Civilista Party, which lasted until the onset of the authoritarian regime of Augusto B. Leguía. The Great Depression caused the downfall of Leguía, renewed political turmoil, and the emergence of the American Popular Revolutionary Alliance (APRA). The rivalry between this organization and a coalition of the elite and the military defined Peruvian politics for the following three decades. A final peace treaty in 1929, signed between Peru and Chile called the Treaty of Lima, returned Tacna to Peru. Between 1932 and 1933, Peru