Difficult to say about the strategic bit. Certainly the Marne & the Somme, the Aisne too. Verdun is in the valley of the Meuse. The Isonzo in northern Italy saw much fighting, notably at Caporetto.
River Marne
River Yser
River Aisne
River Meuse
River Danube
No, losing control of the Mississippi River was the most major strategic loss of the war.
the birth of adolf Hitler
OSS-The Office of Strategic Services
The Marne River.
Vicksburg's location was strategic because it sat on a 200-foot bluff above the Mississippi River. Capturing Vicksburg would sever the Trans-Mississippi Confederacy from that east of the Mississippi River and open the river to Northern traffic along its entire length.
Marne
the Marne River
In World War 1 (1914-1918) the Oder was of strategic significance at all.
The Marne River in France. It was about sixty miles from Paris and it was twice the location of a final and successful defensive stand to keep the Germans out of Paris.
TheOfficeof Strategic Services
the somme
Latin America was the strategic backyard of the US during the Cold War. The Cold War started after World War II and lasted until 1991.
No, losing control of the Mississippi River was the most major strategic loss of the war.
Strategic Command WWII Global Conflict happened in 2010.
Strategic Command WWII Pacific Theater was created in 2008.
Because it was the first war where aircraft had a decisive, strategic effect on the course of the war.
There were several, but the really important one was the Marne.