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Office of the Secretary of the Army
in Military
Operational Support Airlift
in Military
Open System Architecture
in Military
Office Of Special Affairs
in Military
Operational Services Agreement
in Military
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Similar to OSA
15MG - 15 Militia Group
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
View all in Military