Which distance constitutes Danger Close?

Which distance constitutes Danger Close?

• A. Within 0.5 percent PI distance
• B. Within 50 meters
• C. Ordnance delivery inside the 0.1 percent PI distance
• D. Beyond 1 percent PI distance

Answer: (C)

Danger Close is the point at which fire support is so close to friendly forces that special risk management is required. It is defined by delivering ordnance inside the 0.1 percent PI distance, meaning the attack would occur within a radius where there is a 0.1% chance of causing a friendly casualty. This threshold is the official boundary for Danger Close; other radii or fixed distances (like 50 meters) do not define the Danger Close limit, and being outside the 0.1% PI distance means you’re not in Danger Close. So delivering ordnance inside the 0.1 percent PI distance is the correct definition.

Danger Close is the point at which fire support is so close to friendly forces that special risk management is required. It is defined by delivering ordnance inside the 0.1 percent PI distance, meaning the attack would occur within a radius where there is a 0.1% chance of causing a friendly casualty. This threshold is the official boundary for Danger Close; other radii or fixed distances (like 50 meters) do not define the Danger Close limit, and being outside the 0.1% PI distance means you’re not in Danger Close. So delivering ordnance inside the 0.1 percent PI distance is the correct definition.