Even though I haven't updated this timeline for a while, I recently got inspired to write something. Not a continuation of it, but more of an idea were it ends. It is mainly about the decolonisation during the twentieth century, which includes some ideas of what I was planning with it. I left some of it rather vague, as I have no idea about it. Maybe this will get me thinking about it again.
The end of the Dutch colonial empire
At the beginning of the 20th century the Dutch Republic had one of the larger colonial empires in Europe. Although not as large as the English or the French to which it respectively had lost their North American and Indian colonies, it had colonies all over the world. In the Americas there were New Holland, Dutch Guyana and the Dutch west Indies, in Africa the Dutch Gold coast and the Cape Colony, in Asia Ceylon, Java, Bali, Celebes and the Spice Islands and finally in Oceania it controlled the colony of New Gelre.
The end of this empire started after the first Great War in which a large part of the Republic had been occupied by the French. Although the Dutch army and its allies had managed to protect the more populated parts behind the waterline, it still lost a large part of their industrial and manpower, including major cities like Antwerp. As the Dutch navy, especially in combination with the allied English navy, was one of the strongest in the world, the Dutch colonies were relatively safe and they were used as a source of soldiers. At the start they mainly came from the Cape Colony and New Gelre, but after a couple years the Dutch decided to use native troops in the European theatre as well. Native troops were at first used merely in the protection of the colonies, but as most Dutch colonies were relatively far away from French colonies, with the obvious exceptions of Dutch Guyana, Ceylon and the West Indies, it was decided to sent troops from the safer areas to unoccupied Netherlands to help defend it. These troops existed mainly out of upper and middle class natives, whose families already worked for the Dutch and were offered full Dutch citizenship after the war had ended. Although a large group of these soldiers remained in the Netherlands after the war, most of them returned home, which was one of the major causes of emancipation within the colonies.
The results of this would not be seen in most colonies for decades, but in the Cape Colony this was not the case. The Cape Colony was unique within the Dutch colonies, unlike most colonies it had a large number of European inhabitants, but unlike the Netherlands (and new Gelre) it also had a large number of natives. Generally speaking the native population had less rights than the people of European descent, with people of mixed or non-European-non-African descent somewhere in the middle. During the first Great War the Dutch promised and gave full citizen rights for those natives that fought in the Netherlands itself, including the ones from the Cape Colony. When the Great War had ended, they refused to treat the native Africans who had fought in it as full citizens. This lead to Dutch interference, who decided to force the issue on the colony. The relations between the Cape and the home country had been deteriorating at the end of the 19th century with the abolishment of slavery, the refusal of transferring the rule of the Dutch Gold Coast to the Cape Colony and troubles over more autonomy for the Cape. The citizens of the Cape resisted the Dutch interference, violently. The people in the Cape Colony refused to acknowledge the Dutch authority and after a couple of kerfuffles proclaimed themselves independent. Although the Dutch sent in the military, the citizens of the Cape had the advantage in knowledge of the terrain. The conflict was extremely unpopular in the Netherlands, as they were still recovering from the Great War. Besides that there was some sympathy for the citizens of the Cape, but most just did not care about the Cape. They did not want to die for a cause they did not care for. This lead to a crisis in Dutch politics, leading to a collapse of the Dutch government and new elections. With a new Dutch government an agreement was reached between the Netherlands and the colony before it could turn into a full scale war and in 1921 the Cape Colony became an independent country: the Cape Republic.
To avoid the same thing happening with the Colony of New Gelre the Dutch government made a deal to give them a large degree of autonomy. Although the Dutch government would still remain in charge in various matters, including foreign affairs and military matters, this would be the first step towards independence, which New Gelre officially got in 1967.
To the other colonies this autonomy as not extended, as most had only a small population of full citizens, mainly people of European descent, but recently it included former soldiers. The Dutch government, after a long time neglect, had introduced a better form of education and started to develop the colonies in the late 19th century. The educated natives were often used as local military, civil servants, clerics and other important tasks that lacked the European manpower, but were still necessary for ruling the colonies. These people, especially the soldiers returning from Europe became the foundation of the independence movement. At first these were merely local groups who tried to gain more autonomy and investments, usually through legal means.
This changed after the second Great War. Although the Dutch had managed to remain neutral during it, the aftermath of it was felt also in the Dutch Republic. The French and English colonies in Asia revolted against their soon former masters. As both were quite exhausted after the war, they were not able to respond quickly and soon a full scale rebellion erupted. This rebellion spread in 1951 to the Dutch colonies, from India to Ceylon and and a year later from Sumatra first to Java, but quickly to Bali, Celebes and even the Spice Islands. Although the Dutch managed to crush the rebellion in the Spice Islands and Celebes relatively quickly, Java and Bali were a bigger problem. When in 1953 Sumatra became independent from England and started to support the Javanese rebels, the Dutch began to lose ground quickly. In 1954 Java became an independent nation, Bali and Ceylon became independent a year later and in 1959 the Spice Islands (as the Moluccan Islands) Celebes, besides the Christian northeast which was added to the mainly Christian Moluccan Islands.
The revolts in Asia set in motion a process of general decolonisation, including in the Dutch Republic. The other colonies were prepared for independence and in 1960 the Dutch Gold Coast became independent; in 1975 New Holland as Recife and in 1985 Dutch Guyana became two independent countries: former French Guyana (which the Dutch had gained from the French, together with St Maarten and St Bartolomeus after the first Great War) became Cayenne and the rest of Dutch Guyana became merely Guyana.
The independence of Guyana was rather controversial. According to some sources a majority of the people in Guyana (with the exception of Cayenne) had not actually wanted independence, but independence had been forced on them. Many Guyanese preferred living in the Netherlands than in their new independent country and moved en masse to Europe. Some estimate that Guyana lost ¼ of their population. This lead to a delay of the independence of the only Dutch colonies that were left: the Dutch West Indies, split in preparation of independence in three groups, which should have formed new countries: The Dutch Virgin Islands (Tortola, Virgin Gorda, St Thomas and and Jost van Dijk), The SSSS islands (St Maarten, Saba, St Eustatius and St Bartolomeus) and the ABC Islands (Aruba, Bonaire and Curacao). Although the official standpoint of the Dutch government is that these islands should become independent nations, this has been postponed until the inhabitants of the islands vote for independence in a referendum. So far roughly 60% prefers to remain part of the Dutch Republic.