Answer :
The two vivid details that Jean-Roch Coignet uses to convey the desperate situation of the army was the case of French Revolution and Napoleon.
Who is Jean-Roch Coignet?
During Napoleon reign, he was a French soldier who served in the military campaigns of the Consulate, First French Empire and Battle of Waterloo.
In conclusion, as a military man that experienced the events of French revolutions, he used the case an example in conveying the desperate situation of the army.
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