sentences:  To ensure conservation and preservation of the wildlife of Burkina Faso, four national parks have been established.These are the Po National Park in the south-centre of the country, Arli National Park established in 1954 in the southeast, W of the Niger National Park, a trans frontier park existing since 1957 in the east bordering Benin and Niger and the Deux Balés National Park.The forests, fauna and fish have been declared part of the national estate of Burkina Faso.