What were Brazil's military contributions during WWII?
Brazil was the only South American country to join the Allies against the Axis powers during WWII.
Although Brazil was neutral at the beginning of WWII, at the Pan-American Conference in 1942, Brazil supported the United States and severed its ties with the Axis powers. As a retaliatory response, Germany and Italy extended their submarine warfare against Brazil, and as a result, Brazil formally declared war on the Axis powers and began sustained anti-submarine and anti-shipping efforts against both Germany and Italy. Because Brazil had substantial and modern naval assets with which to combat both surface and submarine Axis warshipts, Brazil's efforts provided meaningful assistance to both the United States and Great Britain in that Brazilian support freed American and British assets to focus on other parts of the south Atlantic.