Portuguese in the Far East
In the Far East is where the Portuguese faced their greatest threat from the Dutch. After the capture of Amboina in 1605, the Dutch were able to take command the important spice trade from the Moluccas. This led the Portuguese establish themselves at Macassar on the island of Celebes. Here the Portuguese enjoyed good relations with the local ruler and converted many of the islanders to Roman Catholicism. However, by 1660 the Dutch pressure forced the local ruler to reluctantly expel the Portuguese, and in 1665 most of the local converts moved to the Portuguese settlement of Larantuka on the island of Flores.
In the Lesser Sundas. the Dutch had captured the Portuguese fort on the island of Solor in 1613 however they soon abandoned it. The Portuguese reestablished their presence here in 1620 and rebuilt their fort, securing the area for Catholic converts. The Portuguese Jesuits had succeeded in converting most of the inhabitants of the islands of Flores, Rote, Savu, Sumba, Alor and Timor to Roman Catholicism, ensuring their influence in the region. Portuguese rule here was largely nominal though, with few Europeans in the region, most being missionaries or engaging in trade. Therefore, the Portuguese relied on local converts and Jesuit missions to rule in their name. The Dutch established a fort a Kupang on the Western portion of Timor in 1653, however, the Portuguese were able to gain a series of defeats against the Dutch and their client states throughout the 1650s in this region, relegating the Dutch presence to the area around Kupang.
Further north, the Dutch had been successful in securing a trading monopoly with Japan by 1639, however they had been unsuccessful in establishing trade links with China or taking Macau. The Portuguese ability to hold Macau left the Portuguese monopoly on China-Europe trade in Portuguese hands for the next two centuries. This would lead the Dutch to establish colonies on the island of Formosa, eventually taking over the entire island along with the small Pescadores Islands.
In Malaca (Malacca) the Dutch had been defeated by a Spanish fleet from Manila in the early part of the 17th century, however their attacks here resumed. After the Portuguese naval victory over the Dutch in 1638, the Portuguese were able to reinforce Malaca and prevent its capture. In 1641 and again in 1658 and 1661, the Dutch attempted to capture the Portuguese settlement with their allies, the Sultan of Aceh and the Sultan of Johore. Here too, Portuguese from Nova Lusitânia along with African mercenaries were decisive in fending off the Dutch. Beginning in 1661, the Portuguese would launch a war against Johore, that would result in the Sultante being abolished and placed under direct Portuguese rule by 1680.
With peace being secured in 1661 between the two countries, the Dutch were in possession of much of Java, the Moluccas, parts of Sumatra and Macassar on Celebes. More importantly Batavia had largely eclipsed Goa by 1650. Further north, they controlled Formosa and had an important trading factory at Nagasaki. In India, the VOC forts were limited to the Eastern Coast of the subcontinent with Negapatnam being the most important. Further west the Dutch held Mauritius as a base to resupply their ships on their way to Europe. However, Dutch settlement of Mauritius had many drawbacks, mostly due to tropical disease decimating the European settlers there.