Sudan is a dependency of the Netherlands. What happened in the middle?

I don't know if you have heard of the Republic of Sudan. The Republic of Sudan is located in the northeast of Africa, at the eastern end of the Sahara desert, with a land area of 1, 886,068 square kilometers. It is the third largest country in Africa, ranking 15 in the world. This is a country with a long history. Then how can this country with a huge area and a long history be a subordinate country of the Netherlands?

As far as I know, it was because the Dutch and the Indian Buji were originally allies, but later they fell out because of something, and both sides used force to solve the problem, which led to the war. The outbreak of war made people extremely afraid that war would make them homeless. Fortunately, the two countries signed the armistice treaty in time. How does this involve Sudan again? Let's take a look.

Sultanate was originally called Sultanate of Aceh. Later, on March 26th, 1873, the Dutch colonial government provoked a war with the Sultanate of Aceh. Until 1904, the whole territory of Aceh was controlled by the Netherlands and became the last defeated Sultanate.

Since19th century, British and Dutch colonial forces have been trying to control the Straits of Malacca, because the Sultanate of Aceh is also in the Straits of Malacca. 187 1 year, Britain signed a contract with the Netherlands, which recognized Britain's equal trade rights in east indies, the Netherlands, and Britain also issued a statement agreeing that the Netherlands has the right to move freely in Sumatra. The turning point occurred in March 1873, when the Netherlands suddenly sent warships to invade the Sultanate of Aceh and formally provoked the Aceh War. The following year 1 month, Dutch troops occupied the capital and palace of Greater Aceh Province, and the leader of Sultanate Aceh was forced to flee to the mountains and died soon. At the beginning of 1874, the Netherlands announced the annexation of Aceh. However, the Aceh people did not give in and established a new leader, and the Aceh people continued to fight against the Netherlands. After the 1980s, Aceh adopted guerrilla tactics and launched a large-scale anti-Dutch war, which dealt a heavy blow to the Dutch colonial army. The last turning point was 1894, when Dutch colonists bought off feudal princes and nobles, and the uprising was greatly weakened. The resistance turned to a low ebb. 1903, the leader was arrested and the sovereignty of the Sultanate of Aceh was declared, which was a large-scale struggle against the Netherlands.