OS-21 in Military Meaning
The OS-21 meaning in Military terms is "Observing System 21St Century". There are 1 related meanings of the OS-21 Military abbreviation.
OS-21 on Military Full Forms
- Observing System 21St Century
Frequently Asked Questions (FAQ)
What does OS-21 stand for Military?
OS-21 stands for Observing System 21St Century in Military terms.
What is the shortened form of Observing System 21St Century in Military?
The short form of "Observing System 21St Century" is OS-21 for Military.
Citation
OS-21 in Military. Acronym24.com. (2019, December 24). Retrieved February 6, 2025 from https://acronym24.com/os-21-meaning-in-military/
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