Field-Marshal French says: “Belgium remained a ‘dark horse’ to the last, and could never be persuaded to decide upon her attitude in the event of a general war.... We were anxious she should assist and co-operate in her own defence.” On August 21, he received a note from the Belgian Government remarking that the Belgian field army had from the commencement of hostilities “been standing by hoping for the active co-operation of the Allied Army,” but was now retreating upon Antwerp. M. Engerand (_Le Drame de Charleroi_) says that on July 29, General Lanrezac had sent to General Joffre a report on the likelihood of an enveloping movement by the left bank of the Meuse; that after the German Chancellor’s defence, on August 4, of the violation of Belgian neutrality, the Belgian Government asked France for aid; that the French Minister of War had of his own initiative offered to send five army corps, “but, on August 5, our Councillor of Embassy at London, M. de Fleurian, informed the Belgian Minister that ‘the French Generalissimo did not intend to change his strategic plan, and only the non-co-operation of the British Army would oblige him to extend the French left.’ The Sordêt Cavalry Corps, on and after August 6, reported to the General Staff that 13 German Corps, in two armies, were intended to operate west of the Meuse, and that ten others were ready to advance on the east of the river. On August 7, Lanrezac addressed to the Grand Quartier General another report on the danger to our left; and on the 14th he expressed his conviction that there would be a strong offensive west of the Meuse directly to General Joffre, who did not credit it.” Major Collon, French military attaché at Brussels, and afterwards attached to French Headquarters, has published the following facts in a letter to the Swiss Colonel Egli (_Temps_, September 19, 1918): Although the Army of Hanover (Emmich’s Army of the Meuse) was mobilised from July 21 and concentrated in Westphalia from July 26, it was not till August 3, after the publication of the German ultimatum, that France offered Belgium her eventual military aid. This was declined; but on August 4, when the violation of the frontier occurred the offer was accepted in principle. On August 5, General Joffre authorised the Sordêt Cavalry Corps to move to the Semoy. It began its march on the 6th, and on that night Major Collon arrived at Belgian Headquarters with a view to assuring the co-ordination of the French and Belgian operations. [16] “This plan was at once weak and supple. It was feeble because General Joffre, who established it, ‘saw too many things,’ in the words of the Napoleonic warning.... He knew as well as any one the feebleness of his plan. It was imposed upon him. He sought at least to make it supple” (Reinach, _op. cit._ pp. 58–9).