Distinguish inherent risk from residual risk with a field exercise example.

• A. Inherent risk is the risk present by the mission itself; residual risk remains after controls are applied.
• B. Inherent risk is the risk remaining after controls; residual risk is the risk before controls.
• C. Inherent risk is the risk of weather; residual risk is night-operations risk.
• D. Inherent risk is risk only during combat; residual risk is noncombat risk.

Answer: (A)

The difference comes down to what exists by the nature of the mission versus what you have left after applying safety measures. Inherent risk is the baseline danger that comes with the activity itself—things you would expect to encounter simply by moving through the field environment, such as uneven terrain, poor visibility, or weather changes during a field exercise. Residual risk is what remains after you’ve put controls in place to reduce those dangers—after hazard identification, route planning, PPE, safety procedures, and medical support are added.

For a field exercise, imagine teams moving through rough ground at dusk. The inherent risks include tripping on rocks, slips due to low light, and fatigue from extended activity. You mitigate these by marking routes, enforcing a buddy system, equipping with headlamps and proper footwear, briefing on hazards, and ensuring communication and medical support. Even with those measures, some risk persists—perhaps a slip on a loose rock or a misstep in the dark—that’s the residual risk.