Seiner Majestät UB-4 was a German Type UB I submarine (U-boat) in the German Imperial Navy during World War I. She was sunk by a British Q-ship disguised as a fishing smack in August 1915.
SM UB-5 was a German Type UB I submarine or U-boat in the Imperial German Navy during World War I. She sank five ships during her career and was broken up in Germany in 1919.
SM UB-46 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-46 operated in the Mediterranean and the Black Seas, and was sunk by a mine in December 1916.
RMS Moldavia was a British passenger steamship of the early 20th century. She served as the Royal Navy armed merchant cruiser HMS Moldavia during World War I until sunk by an Imperial German Navy submarine in 1918.
SM UB-47 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-47 was sold to the Austro-Hungarian Navy during the war. In Austro-Hungarian service the B was dropped from her name and she was known as SM U-47 or U-XLVII as a member of the Austro-Hungarian U-43 class.
SM UB-43 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-43 was sold to the Austro-Hungarian Navy during the war. In Austro-Hungarian service the B was dropped from her name and she was known as SM U-43 or U-XLIII as the lead boat of the Austro-Hungarian U-43 class.
SM UB-44 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-44 operated in the Mediterranean and disappeared in August 1916.
SM UB-10 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I.
SM UB-12 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine disappeared in August 1918.
SM UB-13 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine was probably sunk by a British mine net in April 1916.
SM UB-16 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine was sunk by a British submarine in May 1918.
SM UB-17 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine disappeared during a patrol in March 1918.
SM UB-6 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. The submarine was interned after running aground in neutral Dutch waters, and was scuttled by her crew at Hellevoetsluis.
SM UB-7 was a German Type UB I submarine or U-boat in the German Imperial Navy during World War I. She disappeared in the Black Sea in September 1916.
SM UB-18 was a German Type UB II submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 30 April 1915 and launched on 21 August 1915. She was commissioned into the German Imperial Navy on 11 December 1915 as SM UB-18. The submarine sank 128 ships in 31 patrols for a total of 130,841 GRT and 725 tons, making her the 17th most successful U-boat in both world wars. UB-18 was rammed by the trawler Ben Lawer and sunk in the English Channel at 49°17′N5°47′W on 9 December 1917.
SS Batavier II was a steam packet for the Batavier Line that sailed between Rotterdam and London for most of her career. The ship was built in 1897 by the Gourlay Brothers of Dundee. The Dutch ship could carry a limited amount of freight and up to 321 passengers. She was rebuilt in 1909 which increased her length by over 5 metres (16 ft).
RMS Snaefell (III) – the third ship in the line's history to be so named – was a packet steamer operated by the Isle of Man Steam Packet Company from 1910 to 1914. She was then acquired by the Admiralty at the outbreak of the First World War, until she was torpedoed and sunk in the Mediterranean on 5 June 1918.
German submarine U-136 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
SS Karnak was a French Passenger ship turned Troop transport that the German submarine SM U-32 torpedoed on 27 November 1916 in the Mediterranean Sea 70 nautical miles (130 km) south south east of Valletta, Malta. Karnak was carrying mostly troops from Marseille and Malta to Saloniki, Greece.
SS Norseman was a British cargo liner that was torpedoed by the German submarine SM U-39 in the Mediterranean Sea off Thessaloniki, Greece on 22 January 1916 while on route from Plymouth, United Kingdom to Thessaloniki, Greece, while carrying a varied cargo including about 1,100 mules and munitions. Norseman was subsequently beached at Moudros, Greece, and declared a total loss. She was scrapped in situ in 1920.
France 
