Rocroi
Gassion conducted the movements of the army so adroitly that he had brought it to within almost striking distance of the Spanish divisions before Marshal l'Hopital perceived the fact that it was so placed that a battle was almost inevitable. He besought Enghien to fall back while there was yet time, pointing out the orders that had been given that a battle was not to be hazarded, and the terrible misfortunes that would fall upon France in case of defeat. Enghien, however, was deaf to his advice, and refused to acknowledge his authority.

Turenne, under similar circumstances, would have drawn off and forced the enemy to raise the siege by threatening their line of communications; but Turenne thought nothing of personal glory, and fought only for France. Enghien, on the other hand, throughout his career was animated by personal motives, and cared nothing for the general welfare of France. Turenne was wholly unselfish; Enghien was ready to sacrifice anything or everything for his own glory or interest. At present, surrounded as he was by young nobles as eager to fight as he was himself, and backed by Gassion, one of the most able and enterprising soldiers of the day, he declared that he had come to fight and would do so. Even had l'Hopital known the news that had been received by Enghien, he would have been powerless to check or control him. A courier had indeed the day before brought the young duke a despatch containing the news of the king's death and peremptory orders not to fight. Enghien simply put the letter in his pocket, and the contents were known only to Gassion and a few of his most intimate friends.