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Strategic Information System
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Special Intelligence System
in Military
System Integration and Support
in Military
Special Information Systems
in Military
Special Intelligence Service
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Similar to SIS
24NAF - 24th Numbered Air Force
26PEMR - 26th Pennsylvania Emergency Militia Regiment
278 ACR - 278th Armored Cavalry Regiment
2AD - 2nd Armored Division
2E - Role 2 Enhanced
2IC - Second In Command
2LM - Role 2 Light Maneuver
View all in Military