While Bonaparte was crossing the Syrian desert and chafing over the siege of Acre, the long gathering storm of war known as the Second Coalition had broken upon France. It had been preceded by a premature outburst of hostility on the part of the Two Sicilies, induced by the excitement consequent upon the battle of the Nile and fostered by Nelson; who, however influenced, was largely responsible for the action of the court. Despite the advice of Austria to wait, a summons was sent to the French on the 22d of November, 1798, to evacuate the Papal States and Malta. A Neapolitan army of fifty thousand men marched upon Rome; and five thousand were carried by Nelson's ships to Leghorn with the idea of harassing the confidently-expected retreat of the enemy. Leghorn was at once surrendered; but in the south the campaign ended in utter disaster. The French general Championnet, having but fifteen thousand men, evacuated Rome, which the Neapolitans consequently entered without opposition; but their field operations met with a series of humiliating reverses, due partly to bad generalship and partly to inexperience and the lack of mutual confidence often found among untried troops. The French re-entered Rome seventeen days after the campaign opened; and the king of Naples, who had made a triumphal entry into the city, hurried back to his capital, called upon the people to rise in defence of their homes against the invaders, and then fled with the royal family to Palermo, Nelson giving them and the Hamiltons passage on board his flagship.