I'm going to start by mentioning I know of dark deeds, but since they're history and absolutely nothing to do with this thread as they had no influence on modern day Indonesia, I'm ignoring them and don't went the thread ruined by political stuff.
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I've been doing a little study of post 1945 Indonesian history, not exactly a great work that'll survive centuries and/or make me a fortune in royalties, more a rough outline designed to give me a clue or two as to the way things developed here, and how the events since '45 influenced Indonesian thinking.
Most Indonesians are strongly nationalistic but the vast majority aren't xenophobic, so foreigners tend to get a nice welcome.
That, I'm sad to say, doesn't always include people of all skin colours, but that's another story, not really for this thread.
The Dutch occupied much of Indonesia for several hundred years, only leaving when superior Japanese forces kicked them out. The Japanese were hardly saviours, but they did change the local political landscape when they removed the Dutch.
The first president declared freedom for Indonesia on 17 August 1945, and set about forming an administration, something the Dutch government of the time didn't like at all.
The British landed in Indonesia first, but wanted no claim and there was no political will to stay, so they were gone in about 12 months, but that was time enough for the Dutch to return and take control of many major towns, but totally failing to control much outside those areas.
The Indonesian army of the time had little to fight with, mostly home made stuff and 10 year out of date Japanese stuff, but that improved a little when a bunch of several hundred Indian Muslim troops sent by the British defected, taking their weapons and training with them.
There is absolutely no denying the amazing bravery of the Indonesians, but they had very little hope of winning a purely military battle, so the diplomatic front was taken on board.
The communist party declared a soviet republic in a town just outside Jogjakarta but they were quelled quickly, much to the delight of the US who saw Indonesia as anti communist, so potentially a very nice regional ally in the developing cold war, so they quietly forgot about the $10 million they'd loaned to the Dutch to retake Indonesia, and supported independence.
That manifested itself as a United nations security council resolution that basically meant the Dutch had to leave.
That set Indonesia on a path that embraced freedom as an absolute, and dictates nationalist feeling right up to today.