Germany attack the British submarine ( Lusitania ) . The ship sunk to the bottom of the ocean. Killed 1,198 passengers ( including 128 Americans )
Propaganda are posters that spread promote about the war. They wanted people to join the military. People were scared to join the war.
Germany surrender the war because they were wiped out. Their military was falling apart. The U.S also join Britain and France. Germany known that it was the end here.
