Was it General Pershing or General Henri Giraud's decision as to how long the 369th infantry brigade fought ? Why were they forced to fight for 191 days in thefront-line trenches

Was it General Pershing or General Giroud’s decision as to how long the 369th infantry brigade fought ?

Sorry that should have read General Henri Gouraud

I suppose to answer the question as to who has more say in dealing with the 369th -Pershing or Gouraud, one would have to perhaps know the conditions that were agreed upon before they were integrated into the the French 161st Division. I’m not sure if I’m overthinking this. I haven’t been able to find any commentary as yet on the matter.