S-7 means Army Inter-Component Integration Staff at the Battalion/Brigade Level in Military
Similar to S-7
2 WVI - 2nd West Virginia Infantry Regiment2-D - Two-Dimensional
201MIB - 201st Military Intelligence Battalion
20SCVI - 20th South Carolina Volunteer Infantry Regiment
21CLW - 21st Century Land Warrior
21CLWTLD - 21st Century Land Warrior Top Level Demonstration
24 MEU - 24th Marine Expeditionary Unit
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