In WWI, Japan was on the side of the USA, UK and France but had complex and difficult relations with Russia and China.
France was stuck fighting in the trenches on the Western Front for most of WWI.
France in WWI
In WWI America, England, Italy, and France. In WWII America, England, and France.
In WWI, the Western Front was mostly in Northern and North-Eastern France.
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The WWI armistice is celebrated on Nov. 18.
In WWI the naval and economic interests of the US were at stake and this is how the US was convinced to join (in late 1917) the French and British armies fighting since 1914. In WWII France had been already defeated and Great Britain suffered an ordeal under German air strikes before the Pearl Harbor attack convinced the US to stand with their European allies.
Mainly the entire War took place in France. France is the Western Front, and they were the ones that suffered the most damage in WWI
Unless they were drafted like in WWI, they didn't have to join. If you were drafted and didn't go you were probably arrested.
The triple entente consisted of France, Russia, and Britain in WWI
Which war