In relation to the September 11th attacks, the term Ground Zero refers to New York City. the Pentagon. the Shanksville, Pennsylvania, memorial. the site of the World Trade Center.

Why didn’t the united states participate in the league of nations? the u. s. senate did not want the country to join. president wilson did not want the country to join. the league of nations was only for european countries. the league of nations had failed to prevent world war 1