Peru-Bolivian Confederation

The Peru-Bolivian Confederation (or Confederacy) was a short-lived confederated state that existed in South America between the years 1836 and 1839. Its head of state, titled Supreme Protector, was Marshal Andrés de Santa Cruz. The Confederation was a loose union between the states of Peru (by this time divided into a Republic of North Peru and a Republic of South Peru, which included the capital Tacna) and Bolivia. The Confederation fell apart after being defeated by a combined Chilean and Peruvian Force in what it is now known as the War of the Confederation.
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