Can someone summarize this and the unrest in Congo? Its about the historical roots to the unrest in Congo?

The root of the problem was the historical expansionism of the Prussian Military Class, and the territorial ambitions of the French. This resulted in a German conviction that it was their destiny to control all of Europe from the Atlantic to the Baltic, and an equally strong French ambition personified in Napoleon.

At the end of the Napoleonic Wars, the victorious powers (Britain, Austria, Prussia, Russia) created a 'buffer country' out of what is now the Netherlands and Belgium. This was intended to stop or slow down any further French invasions of Germany.

The new country had Protestants in the North, and Catholics in the South. They did not get on, and in 1830 the South split off, and declared independence as Belgium.

As a result of the enquiries started by this man and the Irish politician Roger Casement, the scandal became known internationally. Catholic missionaries confirmed the rumors about conditions, and an international parliamentary commission was convened. Ownership of the country was transferred to the Belgian state, and it became known as the Belgian Congo. Money (a large amount of money) was put into trying to develop the area, and to provide education to the inhabitants, but the size of the territory was enormous, and two world wars intervened. Also, too much remained of the old systems and attitudes.

When the Belgians left the Congo and gave it independence there were only 4 doctors in the whole country. It had enormous mineral wealth, which quickly became the target for greedy warlords both within the Congo and in neighboring newly independent states. Chaos has continued ever since.