A South American dreadnought race between Argentina, Brazil, and Chile was kindled in 1907 when the Brazilian government announced their intention to purchase three dreadnoughts—powerful battleships whose capabilities far outstripped older vessels in the world's navies—from the British company Armstrong Whitworth. Two ships of the Minas Geraes class were laid down immediately with a third to follow. The Argentine and Chilean governments immediately canceled a naval-limiting pact between them, and both ordered two dreadnoughts (the Rivadavia and Almirante Latorre classes, respectively). Meanwhile, Brazil's third dreadnought was canceled in favor of an even larger ship, but the ship was laid down and ripped up several times after repeated major alterations to the design. When the Brazilian government finally settled on a design, they realized it would be outclassed by the Chilean dreadnoughts' larger armament, so they sold the partly-completed ship to the Ottoman Empire and attempted to acquire a more powerful vessel. By this time the First World War had broken out in Europe, and many shipbuilders suspended work on dreadnoughts for foreign countries, which halted the Brazilian plans. Argentina's two dreadnoughts were delivered, as the United States remained neutral in the opening years of the war, but Chile's two dreadnoughts were purchased by the United Kingdom. In the years between the First and Second World War, many naval expansion plans, some involving dreadnought purchases, were proposed. While most never came to fruition, in April 1920 the Chilean government reacquired one of the dreadnoughts taken over by the United Kingdom. No other dreadnoughts were purchased by a South American nation, and all were sold for scrap in the 1950s.
Credit: Brazilian Navy