When were the Gallic Wars?
Gallic Wars
Together with Caesar's prudent and unabashed use of fixed projectile weapons like the "scorpion" and light ballista, the archers and peltasts took a heavy toll on the densely packed Nervii, who themselves shunned all projectile weapons but the lance. It is recorded in Caesar's war commentaries that as the battle raged, the Nervii caught Roman javelins in flight and hurled them back at legionnaires and that although all were eventually slain, not one of the Nervii was seen to flee. As the grim fighting wore on, the Nervii refused to yield and mounds of the fallen formed ramparts and Boduognatus' fighters fought from atop these hills of dead, clashing with the pressing Roman ranks again and again.