OSI in Military could mean:
Displaying 1-3 of 3 result(s).
Similar to OSI
503 RCT - 503rd Regimental Combat Team517 PRCT - 517th Parachute Regimental Combat Team
596 SSC - 596th Signal Support Company
5CCGP - Fifth Combat Communications Group
5M - Machinery, Manpower, Material, Measurement, and Method
6-DOF - Six Degree Of Freedom
60SSC - 60th Signal Service Company
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