It was a great evil, as early as the eleventh century, that the duke of Normandy, one of the great French lords, one of the great vassals of the king of France, should at the same time become king of England, and thus receive an accession of rank and power which could not fail to render more complicated and more stormy his relations with his French suzerain.
From the eleventh to the fourteenth century, from Philip I.to Philip de Valois, this position gave rise, between the two crowns and the two states, to questions, to quarrels, to political struggles, and to wars which were a frequent source of trouble in France to the government and the people.

The evil and the peril became far greater still when, in the fourteenth century, there arose between France and England, between Philip de Valois and Edward III., a question touching the succession to the throne of France and the application or negation of the Salic law.
Then there commenced, between the two crowns and the two peoples, that war which was to last more than a hundred years, was to bring upon France the saddest days of her history, and was to be ended only by the inspired heroism of a young girl who, alone, in the name of her God and His saints, restored confidence and victory to her king and her country.
Joan of Arc, at the cost of her life, brought to the most glorious conclusion the longest and bloodiest struggle that has devastated France and sometimes compromised her glory.
Such events, even when they are over, do not cease to weigh heavily for a long while upon a people.

The struggles between the kings of England, dukes of Normandy, and the kings of France, and the long war of the fourteenth and fifteenth centuries for the succession to the throne of France, engendered what historians have called "the rivalry between France and England;" and this rivalry, having been admitted as a natural and inevitable fact, became the permanent incubus and, at divers epochs, the scourge of French national existence.

Undoubtedly there are, between great and energetic neighbors, different interests and tendencies, which easily become the seeds of jealousy and strife; but there are also, between such nations, common interests and common sentiments, which tend to harmony and peace.

The wisdom and ability of governments and of nations themselves are shown in devoting themselves to making the grounds of harmony and peace stronger than those of discord and war.