During the Cold War, the primary focus of defense and security policies was nuclear deterrence, as both the United States and the Soviet Union possessed large arsenals of nuclear weapons.

The shock and awe doctrine emphasizes the use of overwhelming force to achieve rapid victory in a conflict by paralyzing the enemy's military and political leadership.

The main objective of the United States' containment policy during the Cold War was to prevent the spread of communism by supporting anti-communist governments and alliances around the world.

Counter-insurgency is a military strategy that emphasizes the use of special forces, unconventional warfare, and psychological operations to defeat an insurgency.

The primary goal of arms control agreements is to limit the proliferation of nuclear weapons, reduce the risk of nuclear war, and promote transparency and confidence-building measures.

Network-centric warfare emphasizes the importance of information and communication technologies in modern warfare, enabling forces to share information and coordinate operations in real time.

The main purpose of a no-fly zone is to prevent aircraft from entering a specified airspace, protect civilians from air attacks, and enforce a ceasefire or peace agreement.

Strategic bombing is a military strategy that emphasizes the use of air power to achieve strategic objectives, such as destroying enemy infrastructure and industrial capacity.

The primary goal of a preemptive strike in military strategy is to prevent an imminent attack by an adversary.

AirLand Battle is a military doctrine that emphasizes the importance of maneuver and flexibility in combat operations, combining air and land forces to achieve strategic objectives.

The main purpose of a demilitarized zone in a conflict is to separate opposing forces and prevent conflict, provide a safe haven for civilians, and facilitate peace negotiations.

Blitzkrieg is a military strategy that emphasizes the use of deception and surprise to achieve victory, relying on rapid movement and concentrated force to overwhelm the enemy.

The primary goal of a peacekeeping operation is to maintain peace and security in a conflict zone, protect civilians from violence, and facilitate the delivery of humanitarian aid.

Massive retaliation is a military doctrine that emphasizes the use of nuclear weapons to deter an adversary from attacking, threatening to inflict unacceptable damage in response to an attack.

The main purpose of a military alliance is to deter aggression and maintain peace, provide collective security and defense, and facilitate cooperation and coordination between member states.