The Bolivian State was a reactionary monarchy that existed from 1890 to 1899, with Juan Antonio Siles reigning as caudillo. The state was created as the result of a military coup launched by Siles and the Nationalist Party of Bolivia, which sought to resist all political reforms and to create a strong central government ruled by the elite criollos. The state was weak, losing territory to Chile and Argentina. In 1899, the Chilean government, also controlled by a reactionary regime, decided to occupy Bolivia, claiming that it was a precaution taken in the aftermath of the War of the Pacific, and the regime was overthrown and replaced by the Chilean government.
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