How was wwi different once the American "doughboys" arrived in Europe?

Once the Doughboys arrived in Europe, the allies were able to be kept intact and secure victories until the war ultimately ended.

Explanation:

all persons entering into t

he employment of the compan

y, are considered as engaged

for twelve months, and those who leave

sooner, or do not comply with all these

regulations, will not be entitled

to a regular discharge.