But while the danger was thus abated in one quarter, it only became more serious in another. The Dutch had been protected, and hindered from breaking off from the alliance, only by endangering the fidelity of the Austrians; and it had now become indispensable, at all hazards, to do something to appease their jealousies. The Imperial cabinet, in addition to the war in Italy, on the Upper Rhine, and in the Low Countries, was now involved in serious hostilities in Hungary; and felt the difficulty, or rather impossibility, of maintaining the contest at once in so many different quarters. The cross march of Marlborough from the Moselle to Flanders, however loudly called for by the danger and necessities of the States, had been viewed with a jealous eye by the Emperor, as tending to lead the war away from the side of Lorraine, with which the German interests were wound up; and the instances were loud and frequent, that, now that the interests of the Dutch were sufficiently provided for, he should return with the English contingent to that, the proper theatre of offensive operations. But Marlborough's experience had taught him, that as little reliance was to be placed on the co-operation of the Margrave of Baden, and the lesser German powers, as on that of the Dutch; and he felt that it was altogether in vain to attempt another campaign either in Germany or Flanders, unless some more effectual measures were taken to appease the jealousies, and secure the co-operation of this discordant alliance, than had hitherto been done. With this view, after having arranged matters to his satisfaction at the Hague, when Slangenberg was removed from the command, he repaired to Vienna in November, and thence soon after to Berlin.