Forecasts Twenty-first century 21 Forecasting 12 World politics 6 International relations 5 War 5 21st century 4 Foreign relations 4 Military art and science 4 Twentieth century 4 Congresses 3 Economic history 2 Weapons systems 2 1989- 1 Armed Forces 1 Astronautics 1 Balance of power 1 Business forecasting 1 Civilization, Modern 1950- 1 Competition, International 1 Congresses, 1 Dictionaries 1 East and West 1 Economic 1 Economic aspects 1 Foreign economic relations 1 Great powers 1 Information society 1 Information technology 1 Management 1