Final answer:
Détente replaced the policy of cold war aggression and hostility, and focused on reducing tensions and promoting stability through diplomatic negotiations and efforts for peaceful coexistence.
Step-by-step explanation:
Détente replaced the policy of cold war aggression and hostility between political leaders and nations. It focused on reducing tensions and promoting stability, particularly between the United States and the Soviet Union. Détente was characterized by diplomatic negotiations, such as the Strategic Arms Limitation Treaty (SALT), and efforts to foster peaceful coexistence.