no one gains or looses ground
The United States entry into the war
The entry of the U.S. into the war.
Stalemate.
8 years
On a Coast Line somewhere
Would you mind reposting your question with a little more information? There was a stalemate in most of World War I, but World War II happened in so many places, that I do not know of the occurence in your question . . .
The stalemate generally refers to the Trench warfare in France 1915-1918.
the entry of the U.S. into the war.
They did help break the stalemate.
stalemate
Machine gun
1914