Few sovereigns in history have accomplished such a disastrous life's work as this much-admired prince. If he had not been a soldier of the first ability and a diplomatist of the most unscrupulous sort, he could never have advanced so far towards his ill-chosen goal, the conquest of France. His genius and the dauphin's murderous act of folly at Montereau conspired to make the incredible almost possible. Indeed, if Henry had lived five years longer, he would probably have carried his arms to the Mediterranean, and have united France and England in uneasy union for some short space of time. It is clear that they could not have been held together after his death, for none but a king of exceptional powers could have resisted their natural impulse to break apart. As it was, Henry had accomplished just enough to tempt his countrymen to persevere for nearly thirty years in the endeavour to complete the task he had begun. France was ruined for a generation, England was exhausted by her effort, and (what was worse) her governing classes learnt in the long and pitiless war lessons of demoralization which were to bear fruit in the ensuing struggle of the two Roses. It is a strange fact that Henry, though he was in many respects a conscientious man, with a strong sense of responsibility, and a sincere piety, was so blind to the unrighteousness of his own actions that he died asserting that "neither ambition nor vainglory had led him into France, but a genuine desire to assert a righteous claim, which he desired his heirs to prosecute to the bitter end." Henry VI.