Niger
The two rivers that form the northern border of North Korea are the Yalu River and the Tumen River.
The Red River of the North.
The Yalu River is the border of China and North Korea.
For most of the border, it is the Red River (Red River of the North) which flows north from southern North Dakota into Lake Winnipeg in Canada. The southern section of the border is the Bois de Sioux River, a tributary of the Red River.
The Yalu River is the border of China and North Korea.
St. Lawrence river
It is in a few countries! Guinea, Mali, Niger, on the border of Benin and in Nigeria. Niger, Nigeria [coincidence?]. The River ends in Nigeria
Oueme river
i have no idea. sorry. :(
The Missouri flows through western and central North Dakota. The Red River of the North forms the eastern border of North Dakota.
The Missouri River and the Yellowstone River both cross the border of Montana and North Dakota.