Under what condition can a chemical mine be detonated?

The correct answer is based on the protocols governing the handling and detonation of chemical mines to ensure safety and compliance with military regulations. Detonating a chemical mine typically requires higher-level authorization, particularly due to the hazardous materials involved and the potential risks to personnel and the environment. Approval by a high-ranking official such as a 4-star general reflects the seriousness of the decision and ensures that all necessary assessments, such as risks and operational needs, have been made before proceeding.

In the context of UXO operations, there's a strict chain of command to ensure that the decision to detonate a chemical mine is carefully considered and justified, aligning with military doctrine and international regulations related to chemical weapons. Thus, the requirement for high-level approval ensures that detonation occurs only when absolutely necessary and under controlled conditions to minimize risks to both military personnel and civilians.