From which european country did most of the people emigrate

Trench warfare began after germany failed in its initial plan to seize france and bring a quick end to the war. negotiate a temporary truce with the allied forces. attack the allies by sea with its powerful navy. storm across the eastern front to attack russia.

In ww1 where did france find laborers to with their war movement? ? & what country did the french fear?

In witch form of government do delegates speak on behalf of citizens