http://en.wikipedia.org/wiki/Yser
They invaded at the beginning of the war through Belgium
river that runs through France and belgium
France
Russia jumped in on Serbia's side, dragging in her ally, France, in the process. This triggered the German attack on France, which the Germans made by way of Belgium. Going through Belgium brought Great Britain in. So Russia, France, Belgium and Great Britain (and all her Commonwealth states and colonies).
To get to France Germanies troops had to march through Belgium.
belgium belgium
Through Belgium
Through Belgium
Through Belgium
Belgium .
They went through Belgium to invade France.
Rheims (Reims in French)