So are you indonesian, Dutch or a combination then? Because unless you're talking about the Japanese concentration camps during WWII I need to brush up my history....
The "Indos" are Dutch-Indonesian, they're the children of Dutch men who married Indonesian women back when Indonesia was a Dutch colony. When Indonesia became independent, these Indos where thrown out of Indonesia (being loyal to the Netherlands and not to Indonesia) and mostly went to the Netherlands. Apart from the Turkish group, the Indos are the biggest ethnic group in the Netherlands but since the Indos are culturally Dutch, hardly anyone notices and a lot don't even look Indonesian, just to name one :
Geert Wilders
So, if you ask me whether I'm Indonesian or Dutch then I say "Dutch", it's just that my face doesn't look the deal
For the history between the Netherlands and Japan in a nutshell : Western countries swept into the Far East, taking colonies left and right. Japan resisted being colonized but allowed trade, especially with the Portugese who sold them rifles (the period of Oda Nobunaga, from Civilization V fame). Within a year, the Japanese could make rifles themselves and they created a powerful army. But the Portugese also spread Christianity in Japan. One of the results was the
Shimabara rebellion. The Dutch sided with Japan and turned their guns against the rebels. Japan realized these Western foreigners were more trouble than they're worth and secluded their country :
Sakoku. But the Dutch were allowed as only Western nation to trade with Japan for over 2 centuries.
In this period of national seclusion, the Japanese learned about the great advances in Western science through the Dutch traders. This is called
"Rangaku". It means "Western Studies" but literally it means "Dutch Studies". Thanks to the Dutch, the Japanese kept up to speed with the West and the Dutch were instrumental in creating the Japanese fleet. A fleet that would soon turn its guns to the very nation that helped create them.
The period of national seclusion ended when
American commodore Perry forced the Japanese to open their country for trade.
So, what has Indonesia got to do with all of this? Indonesia was a Dutch colony. In the 1930s the Japanese were at war with China and they've already taken Korea (this has strained relationships up till this very day). China was an ally of the Americans. Japan was the most powerful nation of the Far East but they needed oil for their war machine. This oil came from America, Japan didn't have any oil itself. The atrocities committed by the Japanese against China like the
Nanking Massacre and even against Americans in China like the
attack on the USS Panay were such that America (and its allies) finally stopped providing the Japanese with oil.
The Japanese either had to quit their expansionist dream of
"the Greater East Asia Co-Prosperity Sphere" or get their oil elsewhere.
Of course, Indonesia had a tremendous amount of oil and refineries. But America would never allow the Japanese to take Indonesia. Enter the attack on Pearl Harbor. With the American fleet severly crippled, the Japanese had free reign in the area. Although a
hastily formed alliance of American, British, Dutch and Australian forces was created to keep the Japanese out, one nation after the other quickly fell under Japanese rule. As we all know, in the end the Japanese lost to the industrial might and military cunning of the Americans. Having the Russians sweep into Manchuria with a vast army of millions at the time the atomic bombs were dropped on Hiroshima and Nagasaki didn't help the Japanese either (the Russians had just finished off Germany and their troops were now ready to deal with Japan)
Japan saw the war wasn't going their way and promised Indonesia independence. This seemed like a pretty good idea to people like
Sukarno and when the Japanese were defeated, Indonesia declared independence. This didn't sit very well with the Dutch (all that oil! and gold too!) so they send their army (with the help of the British) and
the revolution was on. Though the Dutch were succesful in their objectives, the Americans were quite fed up with these colonial habits and they threatened to stop the Marshall help if the Dutch didn't acknowledge the independence of Indonesia. Of course, the ones who were loyal to the Dutch were thrown out of the country and that's how hundreds of thousands of Indos came to the Netherlands, amongst them my mum.
So, there you have it in a nutshell