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In Range Shooting
in Military
Information and Reconnaissance Ship
in Military
Interface Requirements Specification
in Military
Information Reporting System
in Military
Internal Revenue Service
in Military
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1LT - First Lieutenant
1MC - General Announcing System
1MX - 1st Battalion The Middlesex Regiment
1NCD - 1st Naval Construction Division
1SG - First Sergeant
1st - IOC 1st Information Operations Command
Land
1WVI - 1st West Virginia Infantry Regiment
View all in Military