The Dutch West India Company fields a…
February 1649 CE
The Dutch West India Company fields a larger, better equipped force than do the Portuguese Brazilians, but they suffer morale problems as most of their army is made up of mercenaries from Europe (primarily Germany) who feel no real passion for the war in Brazil, as opposed to the natives and Portuguese settlers who consider Brazil to be their home and are fighting for a patriotic cause.
The Dutch force is also unused to fighting in the dense jungle and humid conditions of the country, wearing thick, brightly colored European clothing and heavy metal armor which inhibits their dexterity.
The Portuguese win a significant victory over Dutch forces on February 18, 1649, at the second and decisive battle in a conflict called the Pernambucana Insurrection, at Jaboatão dos Guararapes in the state of Pernambuco.
After several hours of fighting, the Dutch retreat northwards to Recife, leaving their artillery behind.
Following the Dutch retreat, the Portuguese army marches into Pernambuco.
This Portuguese victory, known as the Second battle of Guarapes, seriously weakens the Dutch hold on Brazil.