What are the defensive measures used to reduce the vulnerability of individuals and property to terrorist acts?

The concept you're exploring revolves around protecting individuals and property from potential terrorist acts, emphasizing the importance of defensive measures. The correct answer highlights a strategic approach that enhances security.

Countermeasures are actions taken to defend against threats, including terrorist activities. They encompass a variety of techniques and strategies designed to deter, detect, and respond to potential attacks, contributing to a more fortified environment. This includes physical barriers, security technology, and training for personnel to recognize and react to threats.

Some other terms presented do not specifically align with the traditional framework of defensive measures. For instance, evacuation plans are essential for emergency response but focus on the aftermath of an incident rather than preventative measures. Surveillance, while crucial for monitoring and potentially identifying threats, is more of a supporting action than a standalone defensive strategy.

Understanding the breadth of countermeasures allows for comprehensive planning in security strategies, ensuring that vulnerabilities are mitigated effectively.