OPSEC (Operational Security)

Definition

Keeping your military plans secret from the other guy—it's essentially the military version of not shouting your passwords.

Example Usage

Maintain OPSEC and don't discuss mission details on unsecured communications.

Origin

Military security protocols, formalized in Cold War era

Fun Fact

Violations of OPSEC have compromised entire operations and cost lives

Source: Military Security Protocols

Related Terms

Beginner

area of operations

The geographic region assigned to a military commander for conducting operations, abbreviated as AO. Your battlefield sandbox where you're responsible for both victories and catastrophes.

🎖️ Military / Defense

Intermediate

FOB

Forward Operating Base — a secured military position used to support tactical operations. Think of it as a really terrible campground with excellent security and zero amenities. The Airbnb listing would have one star and a warning label. Also: The saying is most often connected to Asian Americans, who may consider it derogatory. Therefore, you should choose another term to refer to a new immigrant or foreigner to the country not to offend people.

📱 Gen-Z / Internet Slang🎖️ Military / Defense

Intermediate

Vectoring

Directing military forces toward a specific objective through radio navigation—basically playing air traffic control for armed units.

🎖️ Military / Defense

Beginner

freight

Cargo or goods in transit through supply chains, often under security protocols in military contexts to ensure safe delivery of sensitive materials. Sometimes the freight is more valuable than the vehicle carrying it.

🎖️ Military / Defense

Intermediate

brigantine

A two-masted sailing vessel with a square-rigged foremast and a fore-and-aft rigged mainmast, common in the 17th and 18th centuries. Brigantines were favored by merchant ships and sometimes privateers for their speed and maneuverability.

🎖️ Military / Defense

Advanced

debus

Military jargon for disembarking from a bus or transport vehicle, because apparently 'getting off the bus' wasn't tactical enough for the armed forces. This term reflects the military's love affair with creating specialized vocabulary for mundane activities. Troops debus when arriving at training sites, deployment zones, or anywhere else a regular civilian would simply 'step off the bus.'

🎖️ Military / Defense

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