Early attempts (1624)
As part of the Groot Desseyn plan, the Dutch West India Company, which had been founded in 1621, tried to capture Luanda after they had captured Salvador da Bahia, the capital of Brazil. Under the leadership of Piet Hein, a Dutch fleet tried to capture Luanda in 1624, but failed, because Filips van Zuylen had tried to capture the city a few months earlier as well, leading the Portuguese to build reinforcements.
After Piet Hein captured the Spanish treasure fleet in 1628, the Dutch West India Company once again tried to set the Groot Desseyn plan in motion. With plenty of resources to pay for their military expenditure, the Dutch successfully captured Recife and Olinda, the core region of Brazilian sugar cane plantations, in early 1630.
Capture of Luanda (1641)
In 1641, a Dutch fleet under the command of Cornelis Jol, seized Luanda from the Portuguese. On 25 August 1641, the Dutch landed 2,145 troops near Luanda under the command of Cornelis Jol. Upon the Dutch arrival, 800 Portuguese, some soldiers and some civilians, fled and regrouped at Kilunda. On 19 September, the Dutch drove them from that position and forced them to fall back to the Portuguese plantations along the Bengo River. The Dutch then fortified their positions along the river.
Dutch forces took control of Luanda and signed a treaty with Queen Nzinga of the Ndongo Kingdom. Nzinga unsuccessfully attacked the Portuguese at Fort Massangano. She recruited new fighters and prepared to engage the Portuguese in battle again, but Salvador Correia de Sá led Portuguese forces from Brazil in expelling the Dutch and reasserting control in Angola. Nzinga's forces retreated to Matamba again.
Dutch rule
The Dutch ruled Angola from 26 August 1641 to 21/24 August 1648, occupying the coastal areas (under a GWC governor of Angola. This attack was the culmination of a plan first proposed by Kongo's King Pedro II in 1622. After the Dutch fleet under Admiral Cornelis Jol took Luanda, the Portuguese withdrew to the Bengo River, but following the renewal of the Kongo-Dutch alliance, Bengo was attacked and subsequently Portuguese forces withdrew to Massangano.
In 1643, the Count of Sonho sent a mission to the Dutch Republic, headed by his cousin Dom Miguel de Castro. The mission traveled via Dutch Brazil, where they were received by John Maurice of Nassau, and arrived in Flushing on 19 June 1643. De Castro sailed by yacht to The Hague on 2 July 1643, where he had an audience with stadtholder Frederick Henry, Prince of Orange.
The Dutch were not interested in conquering Angola, much to the chagrin of Kongo's King Garcia II and Njinga who had both pressed them to assist in driving the Portuguese from the colony. However, Dutch authorities came to realize that they could not monopolize the slave trade from Angola just by holding Luanda and a few nearby places, and moreover, the Portuguese sent several relief expeditions to Massangano from Brazil. Consequently, in 1647, they agreed to reinforce Njinga's army following her defeat by Portuguese forces in 1646. At the Battle of Kombi Dutch and Njinga's armies crushed a Portuguese army and in its aftermath laid siege to Ambaca, Massangano and Muxima.
In 1648, Luanda was recaptured by the Portuguese.