• it took two German submarines, UB-6 and UB-16, to dispatch two World War I Royal Navy recruits?

Facts on topics related to SM UB-6

SM UB-16

• it took two German submarines, UB-6 and UB-16, to dispatch two World War I Royal Navy recruits?

SM UB-10

• World War I German U-boat UB-10 was credited with sinking 23 ships in a 13-day span in July and August 1915?
• the German hospital ship Ophelia was seized by the British Navy as a spy ship in 1914 only to be torpedoed and sunk by German U-boat UB-10 a year later?

SM UB-12

• World War I German U-boat UB-12 was credited with sinking her final ship two months after she disappeared in the North Sea?

SM UB-2

• the World War I German U-boat UB-2 was the only one of the Type UB I submarines in the Flanders Flotilla not to be shipped by rail to Antwerp?

SM UB-13

• when the German U-boat UB-13 sank the neutral Dutch ocean liner Tubantia in March 1916, one of the German excuses was that the torpedo had been fired ten days before and just happened to hit the ship?

SM UB-4

• German U-boat UB-4 was sunk in August 1915 by a fishing smack?

SM UB-8

• when torpedoed in May 1915 by German submarine UB-8, SS Merion was disguised as the Royal Navy battlecruiser HMS Tiger?
• when the German U-boat UB-8 was transferred to the Bulgarian Navy in May 1916, she became the first ever Bulgarian submarine?

SM UB-14

• the first three ships attacked by German U-boat SM UB-14—the Italian cruiser Amalfi and British troopships Royal Edward (pictured) and Southland—were all among the largest ships hit by U-boats during the First World War?