Military matters remain _in statu quo_. The army is camped in the wood of Vincennes. The forts occasionally fire. The Prussians seem to be of opinion that our next sortie will be in the plain of Genevilliers, as they are working hard on their fortifications along their lines between St. Denis and St. Cloud, and they have replaced the levies of the smaller States by what we call here "real" Prussians. Our engineer officers consider that the Prussians have three lines of investment, the first comparatively weak, the second composed of strategical lines, by which a force of 40,000 men can be brought on any point within two hours; the third consisting of redoubts, which would prevent artillery getting by them. To invest a large town, say our officers, is not so difficult a task as it would appear at first sight. Artillery can only move along roads, and consequently all that is necessary is to occupy the roads solidly. General Blanchard has been removed from his command, and is to be employed in the Third Army under Vinoy. His dispute with Ducrot arose from a remark which the latter made respecting officers who did not remain with their men after a battle; and as Blanchard had been in Paris the day before, he took this general stricture to himself. Personalities of a very strong nature were exchanged between the two warriors, and it was thought well that henceforward they should, as much as possible, be kept apart. General Fave also, who commanded the redoubt near Joinville, which arrested the advance of the Prussians on the second battle of Villiers, has "had words." It appears that he declined to obey an order which was forwarded to him, on the ground of its absurdity, saying that he was responsible to his conscience. Indiscipline has been the curse of the French army since the commencement of the war, and it will continue to be so to the end. During the siege there have been many individual traits of heroism, but the armed force has been little better than a mob, and Trochu has not had the moral courage to enforce his will on his generals. Ducrot says that he is determined to take the war battalions of the National Guards under fire at the next sortie, but whether he will succeed remains to be seen. In these marching battalions there are undoubtedly many brave men, but both officers and soldiers are inexperienced, and when they see men falling before them, struck down by an invisible enemy, they lose all presence of mind.