History -- Military policy 3 20th century 1 Armed Forces -- 1 Arms race -- 1 Ballistic missile defenses -- 1 Counterinsurgency -- 1 more ... Foreign relations -- 1 Government policy -- 1 Guerrillas -- 1 Military art and science -- 1 Politics and government -- 1 Prevention -- 1 Procurement -- 1 Reorganization 1 Terrorism -- 1 World politics -- 1 less ...