Foreign relations -- 3 Military policy Christianity and other religions -- 1 Imperialism 1 Influence 1 Islam 1 National characteristics, American 1 more ... Nuclear weapons -- 1 Political culture -- 1 Political messianism -- 1 Politics and government 1 Politics and government -- 1 Psychological aspects. -- 1 Radicalism -- 1 September 11 Terrorist Attacks, 2001 -- 1 Social change -- 1 Social policy -- 1 Social problems -- 1 War on Terrorism, 2001-2009 1 World politics -- 1 less ...