In the event, losses on both sides were substantial but not critical, with the Germans gaining the advantage in tonnage sunk and the British feeling cheated that they had allowed the High Seas Fleet to escape back to port when it was at its most vulnerable. Strategically for Britain, an effective draw was fine, because the blockade could be sustained, while a defeat would have been disastrous. As Winston Churchill said of Lord Jellicoe, in charge of the Grand Fleet, he "was the only commander who could lose the war in the afternoon". For evidence that this could be done, it was necessary to think back to the 1905 battle of Tsushima, in which 31 of the 38 Russian ships engaged were sunk or captured by a Japanese fleet of an apparently similar size, which suffered only minor casualties.