Meanwhile, the jealousies of the German Powers, the delay of Austria in coming to terms with England, and the refusal of Coburg to define his plan of campaign, paralysed the actions of the Allies and saved France. As for the British force, it was too weak to act independently; and yet the pride of George III forbade its fusion in Coburg's army.[224] By the third week of April the Duke of York had with him 4,200 British infantry, 2,300 horsemen, besides 13,000 Hanoverians (clamorous for more pay), and 15,000 Dutch troops of poor quality and doubtful fidelity; 8,000 hired Hessians had not yet arrived.[225] Yet the King and his Ministers persisted in hoping for the conquest of French Flanders. The War Office despatch of 16th April specified as the chief aim of the war the re-conquest of the Low Countries by Austria, "with such extended and safe frontier as may secure the tranquillity and independence of Holland." But Pitt and his colleagues, far from concentrating on Flanders, continued to toy with expeditions to Brittany, Provence, Corsica, and the West Indies. 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 Conde (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.