Picket Line

Intermediate 🎖️ Military / Defense

Definition

An early warning perimeter of guards or sensors designed to detect approaching enemies before they reach main defensive positions. The military's doorbell system, except it rings when people you don't like show up uninvited with guns.

Example Usage

Set up listening posts along the picket line at 500-meter intervals—I want advance warning of any approach.

Origin

From 'picket,' a pointed stake used in fortifications and tethering horses

Fun Fact

The term crossed over to labor movements, where striking workers form 'picket lines'—same concept of creating a monitored boundary, different stakes.

Source: Military security operations and defensive tactics

Related Terms

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