How do physical barriers contribute to the effectiveness of Integrated Defense?

Physical barriers play a critical role in integrated defense by effectively deterring unauthorized access. This is because these barriers, which can include fences, walls, gates, and other physical structures, create a tangible impediment that unauthorized individuals must overcome to gain access to sensitive areas or assets. By increasing the difficulty of unauthorized entry, physical barriers serve as a first line of defense, making it less likely that intrusions will occur and allowing security personnel to respond more effectively to potential threats.

Furthermore, having these barriers in place can enhance security protocols, as they allow for better monitoring of entry points and can be integrated with surveillance systems for real-time monitoring. While other options pertain to different aspects of security and defense, the primary contribution of physical barriers lies in their deterrent effect against unauthorized access, reaffirming their vital role in an integrated defense strategy.