The Dutch ship landed in Manado City in 1660 in assisting the struggle of the Minahasa Confederation against Spain. The United Nations republican association of members of the Minahasa Confederation entered into a Trade Agreement with the VOC. This trade cooperation agreement then made the VOC monopolize the trade, which gradually began to impose its will, eventually leading to the 1700s resistance in Ratahan which culminated in the Dutch Minahasa-War in 1809–1811 at Tondano.