OSI in Military could mean:
Displaying 1-3 of 3 result(s).
Open Systems Interconnection
in Military
Office Of Strategic Intelligence
in Military
Operational Subsystem Interface
in Military

Similar to OSI

17AD - 17th Airborne Division
180FA - 180th Field Artillery Regiment
189FA - 189th Field Artillery Regiment
1BCT - First Brigade Combat Team
1CAV - 1st Cavalry Division
1CD - 1st Cavalry Division
1LT - First Lieutenant

View all in Military