final coordination line

Definition

The last point where attacking units can coordinate before crossing into the objective area where surprise becomes critical. The line between 'talking about it' and 'doing it.'

Example Usage

We'll conduct final checks at the FCL, 500 meters from the objective—after that, radio silence.

Origin

Offensive operations planning terminology to formalize coordination boundaries

Fun Fact

Crossing the FCL too early while chatting on radios has compromised enough operations that it's now a classic example in 'how not to conduct a raid' training scenarios.

Source: Offensive operations doctrine and tactical planning procedures

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tttka

Time to totally kick ass...