Which weapon is associated with a DANGER CLOSE distance of 750 meters?

• A. Artillery
• B. Naval 5 in
• C. Mortar
• D. 16 in

Answer: (B)

Danger Close is the distance within which the effects of a weapon’s blast and fragmentation could put friendly forces at risk, so fire is coordinated to keep within safe boundaries. The naval 5-inch gun is associated with a Danger Close radius of about 750 meters, reflecting the size of its blast and the reach of its fragmentation when used in shore bombardment or close support. That means, within roughly 750 meters of friendly troops, extra precautions and strict coordination are required to prevent friendly casualties. Other weapons have different hazard radii because of their size and explosive power: mortars typically have smaller danger zones, while very large calibers like 16-inch guns create larger hazard areas.