La guerre aux rois était la conséquence naturelle du procès fait au roi de France; la propagande conquérante devait être liée au régicide.—Sorel.

The opening of Parliament on 13th December 1792 took place amidst circumstances that were depressing to friends of peace. Affairs were gyrating in a vicious circle. Diplomacy, as we have seen, had come to a deadlock; but more threatening even than the dispute between Pitt and Lebrun were the rising passions of the two peoples. The republican ferment at Paris had worked all the more strongly since 20th November, the date of the discovery of the iron chest containing proofs of the anti-national intrigues of the King and Queen. Hence the decree (3rd December) for the trial of Louis XVI at the bar of the Convention with its inevitable sequel, the heating of royalist passion in all neighbouring lands. It is one of the many mishaps of the revolutionary movement that its enthusiasm finally aroused an opposite enthusiasm, its fury begot fury, and thus set in a series of cyclones which scarcely spent their force even at Waterloo.

An essentially philosophic movement at the outset, the French Revolution was now guided by demagogues and adventurers, whose only hope of keeping erect lay in constant and convulsive efforts forwards. Worst symptom of all, its armies already bade fair to play the part of the Praetorians of the later Roman Empire. Nothing is more singular at this time than the fear of the troops. Amidst the distress prevalent at Paris, much apprehension was felt at the return of the armies of Custine and Dumouriez. In part, of course, this uneasiness arose from a suspicion that these men, especially the latter, might take up the rôle of Monk and save Louis. But a member of the French Convention assured Miles that the disbanding of those tumultuary forces would bring on a social crisis.

War, [he wrote on 9th December] is to a certain extent inevitable, not so much for the purpose of opening the Scheldt, for that is rather a pretext in order to animate the people and preserve their enthusiasm, but to get rid of 300,000 armed vagabonds, who can never be allowed to return without evident risk to the Convention and Executive Council.... It is her opinion [Madame Roland's] and mine that we cannot make peace with the Emperor without danger to the Republic, and that it would be hazardous to recall an army, flushed with victory and impatient to gather fresh laurels, into the heart of a country whose commerce and manufactures have lost their activity, and which would leave the disbanded multitude without resources or employment.[138]

These words are noteworthy; for they show that prudential or party motives led some at least of the Girondins, formerly friends of England, to desire an extension of the war.

In England, too, the war spirit was rising. The traditional loyalty of the land had been strengthened by the tactful behaviour of George III since Pitt's accession to power. These feelings warmed to a steady glow at the time of the King's illness in 1788–9; and now the trial of Louis XVI, albeit on grounds which Britons could not understand, seemed an act of contemptible cruelty. To bring Louis from Versailles to Paris, to load him with indignities at the Tuileries, to stop his despairing bolt for freedom, to compass his downfall, to attack him in his palace and massacre his defenders, to depose him, and now to try him for his life for the crime of helping on his would-be deliverers, appeared to a nation of sportsmen a series of odious outrages on the laws of fair play. The action of certain Radical Clubs in sending addresses of congratulation to the National Convention also aroused deep disgust; and (as Bland Burges wrote to Auckland on 18th December) Loyal Associations sprang up on all sides.[139] A typical address was sent by the Dover Association to Pitt, as Lord Warden, on 19th December, asking for permission to take arms in defence of King and Constitution against invaders from without or levellers within.[140] The example was widely followed; and thus, as usually happens in this land, the puny preparations of Government were helped on by the eager exertions of the people.

The revulsion in public opinion early in December was so marked as to impress even Chauvelin. He warned Lebrun that within a month the English had so changed as scarcely to be recognizable; but he added: "Pitt seems to have killed public opinion in England." A conversation which Sheridan had with him on 7th December ought to have disproved this fable. The Whig orator sternly reprobated the French decree of 19th November, offering aid to malcontents, and stated that the Opposition desired peace with France, but not if she attacked Holland. Nine-tenths of the people would resent any attempt to interfere with England or her Allies.

This patriotic utterance of Sheridan expressed the feelings of a large part of the Whig Opposition. Parliament on 13th December showed marked approval of the King's Speech, which, while affirming his peaceful intentions, asserted his resolve to strengthen the forces. Lansdowne and Stanhope struck a few jarring notes; but in the Commons the Opposition was almost paralysed by a split between the New and Old Whigs. At a meeting of the party, held on 11th December at Burlington House, the majority decided to support the Government. Indeed Parliament would probably have presented a united front but for the action of Lansdowne, Stanhope, and Fox. Much depended on the conduct of the great orator at this crisis. A warning uttered by him to French Republicans might have had the most salutary effect. Unfortunately his conduct was such as to impair the unity of English sentiment and thereby to encourage the delusions of the men in power at Paris. In the meeting on 11th December he asserted that there was no fear of a revolt (in which he was doubtless correct) and that the calling out of the Militia was a mere trick, which he would strenuously oppose. He admitted that we must support the Dutch if they were attacked, and disapproved of the French decree respecting the Scheldt, but strongly deprecated war on that account. On the 12th he threw caution to the winds, and stated with an oath that there was no address that Pitt could frame on which he would not propose an amendment and divide the House.[141] This is party spirit run mad; but it was in that spirit that Fox went to the House on the 13th.

There he made one of his finest flights of oratory. None of his speeches excels it in beauty of diction and matchless energy of thought. Most forcible was the passage in which he derided the ministerial maxim that the canon of English laws and liberties was complete; that we might thenceforth stand still, and call upon a wondering world to admire it as a model of human perfection. Even more biting were his taunts at Ministers for seeking to stamp out the discontent which their injustice and violence had created.