Europe, Austria and Germany, is surrounded by a ring of armed men, extending, roughly, a distance of 1,500 miles, and defended by a force of about 14,000,000 men, or some five men to the linear yard. This is, in modern war, a sufficient number for effective attack or defence, on ordinary ground; but it is not too many, and in prolonged operation may prove to be too few on some descriptions of terre-plein. Yet, after ten months of the fiercest and most destructive fighting the world has ever seen, this ring of armed men has not been broken, though persistently attacked by three of the most powerful military nations on earth. My estimate of the number of German and Austrian troops actually in the fighting-line at the beginning of the war is much in excess of the numbers stated in English newspapers. I note this; but do not think that 14,000,000 is an exaggeration. I have information, and am not merely guessing. Nor are the losses of the enemy overstated by me. Down to the present date the losses of the Germans and Austrians amount to about 3,000,000 men; but it must be remembered that quite two-thirds of these would be wounded men who would recover, and go back to their respective fighting-lines; so that the actual number of men permanently put out of action is about 1,000,000, including those accounted for by the French, British, and Belgian armies. The losses of the Russians are nearly 2,000,000 men. Of these the greater part fell in the fighting I have described and am about to describe, fighting which may be called a prolonged battle for the possession of Warsaw on the one side and its defence on the other. The importance of this combat will be recognized when it is considered that the taking of Warsaw is the first necessary step towards the occupation of Petrograd. The vision of one man, especially in war, is limited; and I did not see everything that took place in the region in which I was. I heard a good deal, and was ever on the watch to learn and verify, but it could not be otherwise than impossible to be always sure--always correct; and without doubt there are many errors in my narration. What I saw, I saw, and this may be relied on: what I guessed, or was told, I have advanced with caution. Taken as a whole I think my account of the fighting in Poland and East Prussia is as reliable as that of any one man can be: and let it be remembered that I held no official position which could help me in gaining knowledge.