History -- National security -- Government policy -- 3 Terrorism -- 3 Foreign relations -- 2 Political aspects -- 2 Prevention -- 2 more ... 20th century. -- 1 21st century. -- 1 Atomic bomb -- 1 Cross- cultural studies 1 Executive power -- 1 Foreign relations 1 History. -- 1 Natinal security -- 1 Political oratory -- 1 Rhetoric -- 1 less ...