Definition
Military personnel kept in reserve who can be activated quickly if needed. They're basically the military equivalent of having a spare tire in your trunk.
Example Usage
The National Guard remained on standby reserve, ready to mobilize within 48 hours.
Origin
Military readiness and force structure terminology
Fun Fact
Standby reserves cost less than active duty but provide surge capacity when wars happen.
Source: U.S. Military Force Structure and Mobilization Doctrine
Related Terms
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See “Standby Reserve” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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