At first they pressed Coburg to consent to the deviation of the British force towards Dunkirk; and only on his urgent protest was that ex-centric move given up until Valenciennes should have fallen. The Austrian contention was undoubtedly right, as the British Government grudgingly admitted. The Duke of York's force therefore moved along with that of Coburg towards that fortress and showed great gallantry in compelling the French to evacuate the supporting camp of Famars (23rd May). Early in June the siege of Valenciennes began in earnest. A British officer described the defence of the French as "obstinate but not spirited." They made no sorties, and Custine's army of 40,000 men, which should have sought to raise the siege, did not attack, probably owing to the unsteadiness and apathy of his troops.[226] This lack of energy cost him his life; for on 10th July he was ordered back to Paris and soon went to the guillotine.
At that time the Jacobins were in a state of mind in which fury and despair struggled for the mastery. The outlook was as gloomy as before Valmy in September 1792. Bad news poured in from all sides. The Girondins, after the collapse of their power on 2nd June, appealed to the Departments, and two thirds of France seemed about to support them against the tyranny of the capital. Had not the Jacobins developed an organizing power immeasurably superior to that of the moderates, the royalists, and the Allies, the rule of that desperate minority must speedily have been swept away. On 12th July the Parisian Government declared itself at war with the moderates, who now had the upper hand at Lyons and in neighbouring districts. On that same day Condé (a small fortress north of Valenciennes) opened its gates. On 22nd July Mainz surrendered to the King of Prussia; and six days later the Austrian and British standards were hoisted on the ramparts of Valenciennes.
This event raised to its climax the fury of the Jacobins; and on 9th August the Convention passed with acclamation a decree declaring Pitt to be an enemy of the human race. This singular manifestation of Gallic effervescence came about in the following way. The Committee of Public Safety having presented a report on the scarcity of corn and bread, the Convention was electrified by the doleful recital. In the ensuing debate stories are told of men disguised as women who practise insidious devices among the _queues_ at the bakers' shops. At once the Convention decrees that men acting thus while in disguise shall be deemed worthy of death. A deputy named Garnier then suggests that as this is clearly a device of the infamous Pitt to increase disorder, it shall be declared lawful to murder him. Couthon, for once speaking the language of moderation, objects to this proposal as unworthy of the Republic, and moves that Pitt be declared an enemy of the human race. This is at once approved as worthy of the humanity and dignity of the Convention. The decree, then, was obviously a device for shelving the stupid and bloodthirsty motion of Garnier. The whole discussion may be compared with Pitt's declaration to the House of Commons on 12th February 1793, that the war, though undoubtedly provoked by France, would never be waged by England for motives of vengeance, but merely for the attainment of security.