Which radar zone allows a commander to closely monitor enemy territory for weapon detection?

The Artillery Target Intelligence Zone is the correct choice as it is specifically designed for the purpose of monitoring enemy activities, including the detection of enemy weapons. This zone enables commanders to gather intelligence on potential targets, assess threats, and decide on appropriate fire support measures. By closely monitoring enemy territory, the commander can make informed decisions regarding the deployment of artillery and other fire support assets, thereby improving mission effectiveness.

In contrast, the other zones mentioned serve different functions, such as facilitating the process of calling for fire or maintaining the safety of friendly forces. The Call for Fire Zone focuses on the area where requests for fire support can be accurately communicated and executed. The Censor Zone typically involves restrictions on communication and observation for operational security. The Critical Friendly Zone is designated to protect friendly forces from friendly fire or other unintended consequences. Each of these zones plays a role in overall mission planning and execution, but the Artillery Target Intelligence Zone is uniquely positioned to monitor and assess enemy capabilities, making it crucial for effective combat operations.