Many accounts of these matters have been published both here and abroad. Most of the principal actors have unfolded their story. Lord Fisher, Lord Jellicoe, Lord French, Lord Kitchener’s biographer, Lord Haig’s Staff, and many others of less importance, have with the utmost fullness and freedom given their account of these and other war-time events and of the controversies arising out of them. The German accounts are numerous and authoritative. Admirals von Tirpitz and Scheer have told their tales. Sir Julian Corbett, the Official Historian, has in a thousand pages recorded the conduct of the naval war during the whole of my administration. Eight years have passed since I quitted the Admiralty. In all these circumstances I feel it both my right and my duty to set forth the manner in which I endeavoured to discharge my share in these hazardous responsibilities. In doing so I have adhered to certain strict rules. I have made no important statement of fact relating to naval operations or Admiralty business, on which I do not possess unimpeachable documentary proof. I have made or implied no criticism of any decision or action taken or neglected by others unless I can prove that I had expressed the same opinion in writing _before the event_. Many of the accounts which I have mentioned above enjoy the great advantage of having been written some considerable time after the events with which they deal, when the results of schemes and operations set on foot in the early days of the war could be clearly seen, and when the ideas and impressions of 1914 and 1915 could be reviewed in the broad and certain experience and science of 1918 and after. There are no doubt obvious conveniences in this way of treating the subject. Actors in these great situations are able to dwell with certainty upon those of their opinions and directions which have effectively been vindicated by the subsequent course of the war, and they are not, on the other hand, obliged to disturb the public mind by dwelling on any errors of neglect or commission into which they may possibly have been betrayed. I have followed a different method.