The Hundred Years' War, therefore, broke out again in 1369, after an interval of nine years. Edward III. assumed once more the title of king of France, while Charles V., in the usual style, declared that the whole duchy of Aquitaine had been forfeited for treason and rebellion on the part of its present holder. The second period of war, which was to last till the death of the English king, and for some years after, was destined to prove wholly disastrous to England. All the conditions had changed since 1360. Edward, though only in his fifty-seventh year, was entering into a premature and decrepit old age, in which he became the prey of unworthy favourites, male and female. The men of the 14th century, who commanded armies and executed _coups d'état_ at eighteen, were often worn out by sixty. The guidance of the war should have fallen into the hands of his eldest son, the victor of Poitiers and Najera, but the younger Edward had never recovered from the fatigues of his Spanish campaign; his disease having developed into a form of dropsy, he had become a confirmed invalid and could no longer take the field. The charge of the military operations of the English armies had passed to John of Gaunt, duke of Lancaster, the king's younger son, a prince far inferior in capacity to his father and brother. Though not destitute of good impulses Lancaster was hasty, improvident and obstinate; he was unfortunate in his choice of friends, for he allied himself to all his father's unscrupulous dependents. He was destitute of military skill, and wrecked army after army by attempting hard tasks at inappropriate times and by mistaken methods. Despite of all checks and disasters he remained active, self-confident and ambitious, and, since he had acquired a complete control over his father, he had ample opportunity to mismanage the political and military affairs of England. Character of the war.