Niger, officially the Republic of the Niger, is a landlocked country in West Africa. It is a unitary state bordered by Libya to the north-east, Chad to the east, Nigeria to the south, Benin and Burkina Faso to the south-west, Mali to the west, and Algeria to the north-west. It covers a land area of almost 1.27 million km2 (490,000 sq mi), making it the largest landlocked country in West Africa and the second-largest landlocked nation in Africa behind Chad. Over 80% of its land area lies in the Sahara.
https://en.wikipedia.org/wiki/Niger