RMS Mauretania (1906) and were requested by the British government to become armed merchant cruisers, but their huge size and massive fuel consumption made them unsuitable for the duty, and they resumed their civilian service on 11 August. Later, due to lack of passengers crossing the Atlantic, "Mauretania" was laid up in Liverpool until May 1915 at the time that "Lusitania" was sunk by a German U-boat. "Mauretania" was about to fill the void left by "Lusitania", but she was ordered by the British government to serve as a troop ship to carry British soldiers during the Gallipoli Campaign. She avoided becoming prey
German submarine U-652 The 3,410 ton merchant ship "Baron Pentland" remained afloat due her cargo of timber despite a broken back, but was later torpedoed and sunk by on 19 September. On 4 September 1941, off Iceland, the American destroyer received a signal from a British bomber that a German submarine was in the vicinity. "Greer" made sonar contact, and pursued the "U-652" at close range. The aircraft dropped four depth charges, and soon after the U-boat fired a torpedo at the US warship, perhaps believing she had launched the attack. "Oblt.z.S." Fraatz also misidentified the destroyer as ""one of the 50 American