"river" translates as "der Fluß" or "die Ache".
It can be named "der Strom" when referring to a large river in certain contexts.
river = Fluss
There is no river regarded as such. You could say that the Main somewhat divides the country but i doubt that any German believes that.
The Danube River
The German word for river is Fluss. Fluss is male, therefore it has the article der. Der Fluss.
The Oder River.
Ahr River
The river Rhine and the river Elbe.
Oder
The German offensive was halted at the Marne River.
German Cavalry Fording a River - 1902 was released on: USA: November 1902
The river Main. May end in s
How do you say "War" In german? Answer: "Krieg"