Complex sentence: In the rest of the Tenth Army the situation was the same, with infantry being set to hours of digging, enduring German counter-bombardments and discovering that the accuracy of French artillery-fire was not sufficient make it effective.
Split into simpler sentences: In the rest of the Tenth Army the situation was the same, with infantry being set to hours of digging, enduring German counter-bombardments. It was also discovering that the accuracy of French artillery-fire, was not sufficient make it effective.