Sweden and the Emperor were again renewed, and conducted with such acrimony, that it required all the weight and address of Marlborough to prevent a rupture, threatening fatal consequences, from breaking out between these powers. Surrounded by so many difficulties, Marlborough wisely judged that the most pressing danger was that in Spain, and that the first thing to be done was to stop the progress of the Bourbon armies in that quarter. As the forces in the Peninsula afforded no hopes of effecting that object, he conceived, with reason, that the only way to make an effectual diversion in that quarter was to take advantage of the superiority of the Allies in Piedmont, since the decisive victory of Turin in the preceding year, and threaten Provence with a serious irruption. For this purpose, Marlborough no sooner heard of the disasters in Spain, than he urged in the strongest manner upon the Allied courts to push Prince Eugene with his victorious army across the Maritime Alps, and lay siege to Toulon. Such an offensive movement, which might be powerfully aided by the English fleet in the Mediterranean, would at once remove the war from the Italian plains, fix it in the south of France, and lead to the recall of a considerable part of the French forces now employed beyond the Pyrenees. But though the reasons for this expedition were thus pressing, and it afforded the only feasible prospect of bringing affairs round in the Peninsula; yet the usual jealousies of the coalesced powers, the moment it was proposed, opposed insurmountable objections to its being carried into effect. It was objected to the siege of Toulon, that it was a maritime operation, of value to England alone: the Emperor insisted on the Allied forces being exclusively employed in the reduction of the fortresses yet remaining in the hands of the French in the Milanese; while Victor Amadeus, Duke of Savoy, between whom and the Imperialists the most violent jealousy had arisen, threatened to withdraw altogether from the alliance, unless Eugene's army was directed to the protection and consolidation of his dominion. The real reason of these obstacles thrown by the Emperor in the way of these operations, was, that he had ambitious designs of his own on Naples, and he had, to facilitate their accomplishment, concluded a secret convention with Louis for a sort of neutrality or understanding in Italy, which enabled that monarch to direct the forces employed, or destined to be employed there, to the Spanish peninsula. Marlborough's energetic representations, however, at length prevailed over all these difficulties; and the reduction of the Milanese having been completed, the Emperor, in the end of June, consented to Prince Eugene invading Provence at the head of thirty-five thousand men.[16]