Defenses -- Arms control -- 2 Congresses 2 Economic aspects 2 Addresses, essays, lectures 1 Congresses -- 1 Congresses. -- 1 more ... Defense contracts -- 1 Economic aspects -- 1 Economic conditions -- 1 Five Power Defenses -- 1 Forecasting 1 Forecasting -- 1 Foreign relations -- 1 Military art and science -- 1 Military assistance -- 1 National security 1 National security -- 1 less ...