What occurred in Hawaii that caused the US to enter world war 2?
The United States did not attack Pearl Harbor; the Japanese did. Pearl Harbor is located in Hawaii, a US state. Japanese warplanes attacked and demolished the Pacific fleet of Navy ships that were docked there. The attack occured on December 7, 1941 and was the single event that caused the United States to enter World War 2.
During World War I, the Battle of Jutland, a naval clash that occurred on May 31 to June 1, 1916, did not have any directly significant influence on the outcome of the war. Indirectly, however, the battle confirmed Germany's isolation and inability to break the British blockade. Furthermore, it led to the German decision to engage in unrestricted submarine warfare, which eventually caused the United States to enter the war.