Foreign relations -- 5 History -- 3 Cold War 2 Commerce -- 2 Developing countries -- 2 Drug traffic -- 2 Economic assistance, American -- 2 more ... Foreign economic relations -- 2 Islam and politics -- 2 Political aspects -- 2 Politics and government 2 Terrorism -- 2 World politics -- 2 20th century 1 Causes 1 Deterrence (Strategy) 1 Economic conditions 1 Emigration and immigration -- 1 Food supply -- 1 International relations 1 Political stability -- 1 Poor -- 1 Protectionism -- 1 September 11 Terrorist Attacks, 2001 1 September 11 Terrorist Attacks, 2001 -- 1 less ...