It was soon apparent that the withdrawal of their plenipotentiaries from the conference would be the extent of the support which the Northern Courts purposed to give to the King of the Netherlands. The neutral attitude, which the Tsar had promised Lord Durham he should adopt, rendered it certain that Austria would not move a man to the assistance of Holland. Metternich was much concerned at the recrudescence of a demand for more Liberal institutions in Germany, a state of affairs which had called forth from the Diet fresh decrees of a repressive character. The prevailing unrest, however, made it the more desirable that the Dutch-Belgian question, with all the possibilities of danger attaching to it, should be promptly settled. Furthermore, the burden of military establishments was already grievously straining the Imperial exchequer.[253] But, although Metternich had no thought of opposing the action of the constitutional Powers in the Low Countries, he chafed bitterly at the undignified attitude which his Court was compelled to adopt. At one time he would impute the whole blame for the situation which had arisen to the plenipotentiaries at the conference who, by manifesting too plainly their dread of war, had allowed Palmerston to see that he might, without danger, conduct matters as he chose.[254] At other times the Cabinet of Berlin was the object of his fretful complaints. Had Prussia on the first outbreak of the insurrection at Brussels marched an army into the Low Countries, the revolution would have been stamped out, and all the subsequent trouble would have been avoided. France, in that case, he professed to believe, might have threatened, but would never have dared to intervene.[255]

The break-up of the conference and the intention avowed by the two constitutional Powers of expelling the Dutch from Antwerp, although not unexpected, caused considerable perturbation at Berlin. Ancillon, the chief minister, declared that Prussia would agree to the weekly deduction of a million florins from Belgium’s share of the debt due to Holland, for so long a period as the Dutch should retain possession of the citadel of Antwerp. Nor would his Court be prepared seriously to oppose a blockade of the Scheldt by the two maritime Powers. The entry of a French army into the Low Countries, however, was a different matter, and one which would compel Prussia to take steps to safeguard her interests. But, neither the angry language of M. Ancillon at Berlin nor the veiled threats indulged in by Baron Werther in Paris, excited any real apprehension. Nevertheless, as both the French and English governments were sincerely desirous of conciliating the absolute Powers, it was resolved to propose that, pending the settlement of the Dutch-Belgian question, Prussia should occupy Venlo and that part of Limburg which the treaty had assigned to Holland.[256]

It was not until October 22 that the convention, to regulate the conditions under which France and England were to apply coercion to Holland, was signed in London. The French government chafed impatiently at this delay, for which King William’s reluctance to agree to the measures advocated by his ministers was chiefly responsible. Notwithstanding Talleyrand’s[257] explanations of the delicate situation in which Lord Grey was placed, the Duc de Broglie, on October 21, informed Lord Granville that his government could wait no longer. The very existence of the Cabinet, he assured him, was at stake. Unless he were to be in a position to announce to the Chambers, which were about to reassemble, that definite steps were to be taken in order to expel the Dutch from Antwerp, he and his colleagues would assuredly be driven from office. If no news were received from London within the next twenty-four hours, the Cabinet, he had no doubt, would resolve to march an army against Antwerp, in the event of the King of the Netherlands refusing to comply with a summons to evacuate the citadel. This resolution would, however, be at once transmitted to London, and would be kept entirely secret until the British government should have had time to reply to it. But, to the great joy of Louis Philippe and his ministers, the arrival, on October 29, of the convention signed in London relieved them from the necessity of deciding upon their course of action, without having previously obtained the concurrence of the English government.[258]

By the terms of the convention of October 22, 1832, the King of the Netherlands was to be summoned to enter into an engagement by November 2 to withdraw his troops, before the 12th of the same month, from the territory which the separation treaty had adjudged to Belgium. Should he refuse to comply, France and England agreed to lay an embargo upon the Dutch shipping within their respective harbours, to order their cruisers to seize all Dutch vessels at sea, and to blockade the coast of Holland with their combined fleets. If, by November 15, the required evacuation should not yet have taken place, a French army would enter Belgium. But its operations were to be limited strictly to the capture of the citadel of Antwerp and the forts dependent upon it, and, when this result should have been attained, it was to withdraw immediately. At the same time, a note was to be addressed to the government at Brussels calling for the evacuation of Venlo and those places still occupied by Belgium, which, under the provisions of the separation treaty, had been assigned to Holland.[259] This demand, however, would be of a purely formal character, and was to be made upon the understanding that it need only be complied with, should the King of the Netherlands agree to the concessions required of him.[260]

Immediately upon receipt of the convention in Paris, the French fleet at Cherbourg was ordered to unite with the British squadron at Spithead. This junction was duly effected, and, on November 4, the King of the Netherlands having declined to comply with the demand which had been presented to him, the combined fleets set sail for the mouth of the Scheldt, whilst, two days later, both governments laid an embargo upon the Dutch shipping within their ports. The Duc de Broglie, in the meanwhile, had instructed La Tour-Maubourg, the French minister at Brussels, to negotiate a convention for the entry of a French army into Belgium. The French government had always insisted that the operations, for the reduction of the citadel of Antwerp, must be carried out exclusively by its own troops. The Belgian army was to be entirely separated from them, and was to do no more than hold itself in readiness to repel an invasion, should the Dutch make an incursion across their frontiers. King Leopold reluctantly assented to these conditions, which necessarily deprived his people of an excellent opportunity of wiping out their humiliations of the year before. It came, therefore, as a disagreeable surprise when, on the occasion of the exchange of the ratifications of the convention, La Tour-Maubourg handed in a statement reserving to the French government the right of demanding payment for the expenses of the expedition. This claim, it was afterwards explained, would not be enforced immediately, but would be allowed to stand over until some future occasion. In Palmerston’s opinion, however, the fact that payment was to be deferred made the demand no less objectionable. Were it to be admitted, Belgium must necessarily be placed in a position of dangerous dependence upon France. His vigorous protests achieved the desired result. After some discussion the French government agreed to abandon its claim for the repayment of its expenses.[261] In all other respects matters proceeded with perfect smoothness. In accordance with the terms of the convention, on November 16th, a French force of 60,000 men, under the command of Marshal Gérard, crossed the Belgian frontier and laid siege to the citadel of Antwerp, the Duc d’Orléans and the Duc de Nemours, the two eldest sons of Louis Philippe, accompanying the headquarters staff of the army of operations.

In London the application of coercion of so vigorous a nature was far from evoking the universal applause which it called forth in Paris. Among the general public the entry of Marshal Gérard’s army into Belgium was regarded with suspicion, and a meeting of London merchants was held, and a petition was forwarded to the King, praying that hostile measures might not be taken against the Dutch. The Tories openly declared that they placed all their hopes in General Chassé, the commandant of the citadel of Antwerp. If only that gallant officer could contrive to repel the French, the Grey Cabinet, they conceived, might be forced to resign. Possibly there were sanguine members of the party who fancied that the prowess of a Dutch general might pave the way to the repeal of the Reform Act. In the meantime all their sympathies went out to a drunken sailor who, from the dock in the police-court, proclaimed the union of the British flag with the tricolour to be a national disgrace.[262]

The proposal that Prussia should occupy Venlo and parts of Limburg, and the limitations which the convention of October 22 set upon the scope of the French operations, somewhat reconciled the German Powers to the forcible ejection of the Dutch from Antwerp.[263] Nevertheless, after having in the first instance declared its readiness to take temporary possession of portions of the disputed territory, the Court of Berlin, at the instigation, it was suspected, of the Tsar, declined to entertain the suggestion. Inasmuch as the acquisition of the citadel of Antwerp by the Belgians depended upon the success of the French arms, they could not reasonably be expected to yield up, even to a third party, any territory which they actually occupied, before the operations under Marshal Gérard should have achieved their desired result. Accordingly, in the formal proposal of Talleyrand and Palmerston, which was submitted to Bülow on October 30, it was provided that the Prussian occupation of Venlo and parts of Limburg and Luxemburg should begin, only when the French expedition should have accomplished its object. Ancillon, however, declared that this suggestion was altogether inadmissible. Prussia, it was true, had signified her willingness to hold certain districts of the Low Countries. But she had only consented to take temporary possession of them for the security of her own interests during the French operations against Antwerp. To occupy any portion of Holland, after the withdrawal of Marshal Gérard’s army, would amount, in effect, to the application of military pressure to the King of the Netherlands to compel him to accept the conditions of the separation treaty. Such a proceeding would be wholly inconsistent with the policy which the Court of Berlin had invariably pursued, and to which it was resolved to adhere. Prussia, therefore, would content herself with the concentration of an army of observation upon the Meuse, for so long a period as the French might see fit to remain in Belgium.[264]

In the meantime the siege of the citadel of Antwerp had been proceeding steadily, although hardly with the rapidity which the British government, in its impatience to see the affair concluded, could have wished.[265] At last, after having sustained a very heavy bombardment and having done all that honour required, General Chassé, on December 22, agreed to surrender. But the two detached forts of Lillo and Liefkenshoek, which, owing to the opening of the dykes, could only have been reduced by a long blockade, were not included in the capitulation. The arrangements connected with the transference of the fortress to the Belgian military authorities were quickly carried out, and, on December 27, the French army began its homeward march.

The operations of Marshal Gérard had placed the Belgians in possession of the citadel of Antwerp, and had infused vitality into the Soult government, but they had not succeeded in overcoming the reluctance of the King of the Netherlands to adhere to the separation treaty. It remained to be seen whether the embargo which France and England continued to maintain, and the loss entailed by the non-payment of the Belgian share of the Netherlands debt, would suffice to break down his obstinacy. After this state of affairs had continued for some four months distinct symptoms began to manifest themselves in Dutch commercial circles of discontent at the prolongation of the crisis. About this same time also the Russian and Prussian Cabinets became imbued with the notion that the conclusion of the Dutch-Belgian affair might lead to a separation between France and England. Their intimate union had grown up in the course of the negotiations, the final settlement of the question, it was hoped, might cause them to drift asunder. The agents of the northern Courts at the Hague were, accordingly, instructed to urge the King to terminate definitely his troublesome quarrel with Belgium and the maritime Powers.[266]