Which type of risk is concerned with hazards existing due to an enemy or adversary?

The correct answer pertains to tactical risk, which specifically focuses on the hazards and threats posed by an enemy or adversary in a military or operational context. Tactical risks involve considerations related to engagements with hostile forces, operational effectiveness during combat, and the impact of adversarial actions on mission objectives. This type of risk assessment is crucial for formulating strategies and deploying resources effectively to mitigate potential losses and enhance operational success.

In contrast, accidental risk refers to unintentional incidents that can lead to damage or loss, operational risk encompasses broader risks that could impact the viability of operations regardless of adversaries, and environmental risk deals with dangers arising from the surrounding physical environment, which may not necessarily involve adversarial threats. Each of these other types of risks has a distinct focus and does not specifically address the influences and hazards linked to enemy actions that are central to tactical risk.