The present situation in that area is giving some cause for concern. I was hoping my much anticipated tour of Sabah in April would not be affected but it is very much in doubt. I will not go into the politics of it here because I have more or less waived my rights for being a long term resident overseas. But I can at least say this. It is universally accepted in any modern democracy that all citizens are fundamentally entitled to a choice in self determination by exercising the right to vote and not through force or coercion. History is but a tool in making a decision such as this.
Anyway, I am posting the images here again.
And also for more historical details from a prolific blogger click on this link:
Here are the English translation of the treaties. There are obviously more than two. You can draw your conclusions regarding the true ownership of these lands.