Qual a importância da demarcação de terras, feito pelo governo brasileiro , nas terras indígenas?

In Brazil, an indigenous territory or indigenous land (Portuguese: Terra Indígena, is an area inhabited and exclusively possessed by indigenous people. The Brazilian Constitution recognizes the inalienable right of indigenous peoples to lands they "traditionally occupy" and automatically confers them permanent possession of these lands. In practice, however, a formal process of demarcation is required for a TI to gain full protection, and this has often entailed protracted legal battles. Even after demarcation, they are frequently subject to illegal invasions by settlers and mining and logging companies.

There are 672 indigenous territories in Brazil, covering about 13% of the country's land area.  Critics of the system say that this is out of proportion with the number of indigenous people in Brazil, about 0.41% of the population; they argue that amount of land reserved as TIs undermines the country's economic development and national security.

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not too sure on this one thinking tyo organize the division of africa