Peru-Bolivian Confederation

State · 1836–1839 CE · at its largest around 1836 CE

Andrés de Santa Cruz's bold attempt to reunite the old Inca heartlands of Peru and Bolivia into one Andean power. Fearing a rival on the Pacific, Chile and Argentina went to war against it, and Chile's victory at Yungay in 1839 ended the experiment.

On its lands while it lasted

Tacna (c. 1836 CE): Capital of Peru-Bolivian Confederation (1836–1839).