General
danger close
What does danger close mean?
A term in a call for fire or close air support warning that the target is close enough to friendly forces that the supporting fires pose a risk to them, requiring extra care and often ground-commander approval.
""Be advised, this mission is danger close — friendlies two hundred meters south.""
Origin
US/NATO fire-support terminology; the specific distance depends on the weapon system.
Frequently asked questions
What does "danger close" mean?
It's a warning in a call for fire or air support that the target is close enough to friendly forces that the supporting fires could endanger them.
What happens when a mission is danger close?
It requires extra care and often the ground commander's explicit approval, because friendly troops are within the risk radius of the weapons being used.
How close is danger close?
The specific distance depends on the weapon system being fired — it's not one fixed number but varies with how large the effects of that weapon are.
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