The Government's response was the bombing of their villages and the forced displacement of the indigenous people towards the border with Brazil, where they were subsequently handed over the first territorial reserve in the history of Peru.

In 1994, the Matsés, with the support of the NGO CEDIA, asked the Ministry of Agriculture to form a communal reserve that would guarantee them access to the food that the forest and rivers provide them.

In the first week of October 2007, three letters from PerúPetro addressed to the Matsé community, reported on the upcoming signing of concession contracts for the exploration and exploitation of hydrocarbons on land owned by the natives and in other areas that for 14 years they had been proposing as a communal reserve for its great biodiversity.

014-2009-MINAM, the objectives of the Matsés National Reserve are as follows: promoting the improvement of their living conditions and respecting their legitimate rights to sustainable use.

[4] During the two weeks of the sampling for the rapid biological inventory carried out in the area in November 2004, by a team made up of The Field Museum of United States in conjunction with Peruvian organizations such as Universidad Nacional de la Amazonía Peruana, the NGO CIMA, the NGO CEDIA, among others, 177 fish species were registered, 10 new to Peru and eight could be new to science, although it is estimated that there may be more than 300.

[6][7] According to the rapid biological inventory, the forests are remarkably intact and appear to harbor a higher diversity of plants than in any other Peruvian reserve in low jungle.