On March 18, 1915, "The Great Effort" was made to force the defenses with naval operations, all previous work having been preliminary. The battleships _Agamemnon_, _Prince George_, _Queen Elizabeth_, _Lord Nelson_, _Triumph_, and _Inflexible_ steamed right up to the Narrows. Four of them bombarded Chanak and a battery which lay opposite it, and the forts at Saghandere, Kephez Point, and Dardanos were kept busy by the _Triumph_ and the _Prince George_. After the fleet had been at it for an hour and a half they received the support of the four French ships which steamed in close and attacked the forts at a shorter range. When the forts ceased firing the six battleships _Ocean_, _Swiftsure_, _Majestic_, _Albion_, _Irresistible_, and _Vengeance_ came in and tried to carry the attack further. While the French squadron maneuvered to allow freedom of action for this newer British squadron the Turkish guns resumed fire. Then came the first of a series of disasters. Three shells struck the _Bouvet_, and she soon began to keel over. When the underwater part of her hull came into view it was seen that she had been hit underneath, probably by one of the mines which the Turks had floated toward the crowded ships. She sank almost immediately, carrying the greater part of her crew down with her. Only two hours later another mine did damage to the _Irresistible_, and she left the line, listing heavily. While she floated and while she was under heavy fire from Turkish guns a destroyer took off her crew. She sank just before six o'clock. Not fifteen minutes later the _Ocean_ became the third victim of a floating mine, and she also went to the bottom. Destroyers rescued many of her crew from the water. The guns from the forts were also able to do damage; the _Gaulois_ had been hit again and again, with the result that she had a hole in her hull and her upper works were damaged badly. Fire had broken out on the _Inflexible_, and a number of her officers and crew had been either killed or wounded. The day ended with the forts still able to return a lively fire to all attacks, and "The Great Attempt" on the part of the allied fleets had failed. On the other end of the passage there had also been some naval operations, when, on March 28, 1915, the Black Sea Fleet of the Russian navy had bombarded the forts on the Bosphorous. Smyrna was again attacked on April 6, 1915. The operations of allied submarines were the next phases of the attack on the Dardanelles to be reported. The _E-5_ grounded near Kephez Point on April 17, 1915, but before she could be captured by the Turks picket boats from the allied fleet rescued her crew and then destroyed her. It was just two months now since the naval operations had begun at the Dardanelles; it was seen then that all attempts to take them by naval operations alone must fail as did the attack of March 18, 1915. CHAPTER XXIX GERMAN RAIDERS AND SUBMARINES