12h 38min, sep 18, 1915 y - The Suspension Of Submarines

Description:

There was international outrage due to the sinking of the Lusitania and other neutral ships. This leads to Kaiser Wilhelm to suspend unrestricted submarine warfare. This was part of an attempt to keep the U.S. out of the war, but it also had an effect on Germany's effort to stop American supplies from getting to France and Britain.