Surprised you guys missed the French take on WWI warfare.
Mutiny. In May 1917, their entire ARMY refused to fight.. and for the remainder of the war, the Commonwealth and the US carried the brunt of offensive operations.
That's right folks.. France, with the invader on her soil, had entire divisons refuse their orders to assault German Positions, leaving the dirty work to British, Canadian, New Zealand and Australian troops. Took the arrival of US troops a month later, in June; to break the stalemate. French troops were never again used in an Alled offensive. Had the Americans not been in France the following spring the Allies would have folded under the weight of the German offensive (they defeated the Russians the previous fall). The result was the Germans, unable to sustain their very successful Spring 1918 offensive operations against the combined strength and reslove[/b] of the Commonwealth and American troops, the Huns would have won the war.