Army Abbreviations and Acronyms
- OCROptical Character Reader
- OCRDOffice of The Chief of Research and Development
- OCSOffice of The Chief of Staff
- OCSOffgcer Candidate School
- OCSOfficer'S Candidate School
- OCSOfficer Candidates Schosl
- OCSOfficer Candidate Schools
- OCSOperational Control Segmeni
- OCSOfficers Candidate Schoov
- OCSOffensive Counterspace
- OCSOperational Control Segment
- OCSOfficer Candidate School
- OCS3Optical Carrier 3 Communications
- OCSAOffice of The Chief of Staff of The Army
- OCSAOffice of The Chief of Staff, Army
- OCSOOffice of The Chief Signal Officer
- OCSSOffice of The Chief of Special Services
- OCSURVOcean Surveillance
- OCTObservur Controller Trainers
- OCTUOfficer Cadet Training Unit
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