Students will learn about the United States' role as the world's only superpower folling the collapse of the Soviet Union, American involvement in the Persian Gulf War, the global war on terrorism that began with the attacks on September 11, 2001 and the invasion of Iraq in this section of the online exhibition The Price of Freedom: Americans at War. Americans struggled to define the roles they should play in the community of nations and fought to defend their interests against threats at home as well as abroad. A non-flash version of this site is available: New American Roles.