Tigray Region
Tigray Region (, "kilil Tigrāy;" Official name: , "Bəh̩erawi Kəllelawi Mängəśti Təgray", "Tigray National Regional State") is the northernmost of the nine regions ("kililat") of Ethiopia. Tigray is the homeland of the Tigrayan, Irob and Kunama peoples. Tigray is also known as Region 1 according to the federal constitution. Its capital and largest city is Mekelle. Tigray is the 6th largest by area, the 5th most populous, and the 5th most densely populated of the 9 Regional States.
Tillabéri Region
The region of Tillabéri is bounded to the north by the Republic of Mali, to the east by the regions of Tahoua and Dosso, to the south by Benin and to the west by Burkina Faso. The Niamey Capital District built around the Niger River. The region has a large network of watershed, centered on the Niger river with several seasonal (known as Gorouol, Sirba) and permanent (known as Mékrou, Tapoa) watercourses. The W National Park of Niger is located in the extreme south of the region and extends to Burkina Faso and Benin. The northwestern part of the region (Ouallam and Filingué) have a savannah type flora and fauna.