War of the Triple Alliance

War of the Triple Alliance, (1864/65–70), the bloodiest conflict in Latin American history, fought between Paraguay and the allied countries of Argentina, Brazil, and Uruguay. Paraguay had been involved in boundary and tariff disputes with its more powerful neighbours, Argentina and Brazil, for years. The Uruguayans had also struggled to achieve and maintain their independence from those same powers, especially from Argentina. In 1864 Brazil helped the leader of Uruguay’s Colorado Party to oust his...