It is continually stated that it is impossible to bring out at the present time any accurate history of the war. No doubt this is true so far as some points of the larger strategy are concerned, for the motives at the back of them have not yet been cleared up. It is true also as regards many incidents which have exercised the minds of statesmen and of many possibilities which have worried the soldiers. But so far as the actual early events of our own campaign upon the Continent are concerned there is no reason why the approximate truth should not now be collected and set forth. I believe that the narrative in this volume will in the main stand the test of time, and that the changes of the future will consist of additions rather than of alterations or subtractions.The present volume deals only with the events of 1914 in the British fighting-line in France and Belgium. A second volume dealing with 1915 will be published within a few months. It is intended that a third volume, covering the current year, shall carry on this contemporary narrative of a tremendous episode.From the first days of the war I have devoted much of my time to the accumulation of evidence from first-hand sources as to the various happenings of these great days. I have built up my narrative from letters, diaries, and interviews from the hand or lips of men who have been soldiers in our armies, the deeds of which it was my ambition to understand and to chronicle. In many cases I have been privileged to submit my descriptions of the principal incidents to prominent actors in them, and to receive their corrections or endorsement. I can say with certainty, therefore, that a great deal of this work is not only accurate, but that it is very precisely correct in its detail. The necessary restrictions which forbade the mention of numbered units have now been removed, a change made possible by the very general rearrangements which have recently taken place. I am able, therefore, to deal freely with my material. As that material is not always equally full, it may have occasionally led to a want of proportion, where the brigade occupies a line and the battalion a paragraph. In extenuation of such faults, and of the omissions which are unavoidable, I can only plead the difficulty of the task and throw myself upon the reader's good nature. Some compensation for such shortcoming may be found in the fact that a narrative written at the time reflects the warm emotions which these events aroused amongst us more clearly than the more measured story of the future historian can do.It may seem that the political chapters are somewhat long for a military work, but the reader will find that in subsequent volumes there are no further politics, so that this survey of the European conditions of 1914 is a lead up to the whole long narrative of the actual contest.I would thank my innumerable correspondents (whom I may not name) for their very great help. I would also admit the profit which I have derived from reading Coleman's Mons to Ypres, and especially Lord Ernest Hamilton's The First Seven Divisions. These books added some new facts, and enabled me to check many old ones. Finally, I desire to thank my friend Mr. P. L. Forbes for his kind and intelligent assistance in arranging my material.ARTHUR CONAN DOYLE.