0 St. 29 Min, 7 Mai 1915 Jahr - The British ship "Lusitania" was sunk by German forces, killing thousands due to the ship sinking in only 18 minutes. nearly 1,200 people were killed, and in those casualties were 128 U.S citizens, Germany felt justified in the attack and hostility grew between the U.S and Germany, which would contribute to the U.S declaring war on Germany.