Most died, your grandfather was lucky to survive while many of his brothers in arms fell to his sides or a bullet ricocheted a few millimeters from his head.
Anyway thank you for having asked the question, to answer you because he posted this superb example for all to enjoy. You will learn and what did a handful of French youth in Bir Acheim to begin to recover the reputation of the French army, as you learn the harshness of the fighting in the Vosges. In short, you will know why he wears a beautiful red sofa in his buttonhole.