text: 4. A next wave of intruders came from further away, from Europe. German and English colonialists invaded from the east, Belgians from the west. The central highlands were divided arbitrarily. After some more wranglinq for Dower and riqhts the Burundi nation was born. 5. The four mentioned ethnic groups had a decisive influence in shaping the modern human history in the region which is today called Burundi. The pygmoid aborigines, the Batwa, reduced in numbers to insignificance have partly and forcibly been mixed with the second ethnic group, the still mainly agriculturist Bantu peoples, called Hutu. The group they comprise is now dominated by rulers belonging almost exclusively to the third ethnic group, the nilotic peoples, called Tutsi. The latter are advised by the fourth ethnic group, the Europeans, formerly the colonial rulers. The Europeans assist the Government by supply of arms as well as by protection and management of the foreign trade, the main source of income. 6. Decimation reduced the pvgmoid Batwa to a few thousand in number. There are no exact fiqures. The Batwa are approximately as numerous as Eurooeans in Burundi, but they enioy, as a whole, far less riqhts and opportunities than them. Even more than the Hutu, who represent some 85 per cent of the inhabitants, the Batwa are completely banned from any political participation or self-determination. 7. For decades the war between Hutu and Tutsi has been carried out under strong influence of the Europeans in conformity with their interests. Althouqh there is international awareness of this war, it is often wrongly misinterpreted as a negative example of tribalism, no account being taken of conditions set by the Europeans. 8. However, practically nobodv shows any concern for the almost completed extinction of the peaceful Batwa. This extinction is nowadays perfected by 
analysis: The text primarily discusses the history and current situation of the Burundi nation, focusing on the interactions between different ethnic groups and the influence of European colonialism. It highlights the struggles and marginalization of the Batwa people, a minority group, and the ongoing conflict between the Hutu and Tutsi groups. While the text does not explicitly mention economic or industrial development, it touches on the topic of international trade and the role of European powers in shaping the country's politics and economy.