The public in both countries were indeed egregiously wrong in their judgment because they were completely ignorant of naval warfare, and measured success at sea by mathematical equations just as they measured progress on land by miles. It was only the navies engaged that knew the truth, and they had inadequate means of making their knowledge known. British sailors were loath to admit even among themselves the defects in their vessels, gunnery, and leadership which the battle revealed; but they made less a secret of Von Scheer's skill. He had with a smaller force inflicted greater damage on his enemy, and he had snatched his fleet from the jaws of destruction. He was no doubt favoured by the weather, and he turned to the best advantage his facilities of defence; for the enemy in retreat can use his torpedoes with greater effect than his pursuer, can tempt him into minefields and submarine traps, and conceal himself by smoke-screens. German Dreadnoughts had, moreover, been built for defence in home waters and not for keeping the seas. Space, which was used to strengthen their armour, had in our capital ships to serve the needs of offence, speed, and comfort; and subsequent inspection at Scapa Flow showed that the German High Seas Fleet was not designed to provide its crews with living room for more than seventy-two hours without recourse to port. But all these advantages and Von Scheer's skill could not reverse the verdict in that trial of strength, and our qualms about the battle of Jutland were a just nemesis on our inveterate habit of judging by material tests. The decisive factor in war is not the material but the moral effect; and while the German Fleet was not destroyed at the battle of Jutland, its moral was hopelessly shattered. Few of the German sailors who had been in a naval battle had hitherto returned to tell the tale, and those who went out in the High Seas Fleet on 31 May had been taught to believe in its invincibility. But, said a German officer, "the way we were utterly crushed from the moment your battle fleet came into action took the heart out of them. Another hour of daylight would have finished it," while only three men in Jellicoe's main battle fleet were wounded. Der Tag had come with a vengeance, and from that day every attempt to take out the German Fleet to battle produced a mutiny or the threat of one.