S-5 means Army Civilian Affairs/Public Affairs Staff at the Battalion/Brigade level in Military
Similar to S-5
129 RQW - 129th Rescue Wing12N - Horizontal Construction Engineer
13 SCVI - 13th South Carolina Volunteer Infantry Regiment
13AD - 13th Airborne Division
13B - Military Occupational Specialty code for Cannon Artilleryman
147FA - 147th Field Artillery Regiment
15MG - 15 Militia Group
View all in Military