UMK-3 means Tactical Environmental Support System / Shipboard Meteorological and Oceanographic Observing System in
Military
Similar to UMK-3
24 MEU - 24th Marine Expeditionary Unit
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
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