A/N: (P) = Promotable
Royal Equestrian Army
--Combat Field-Army
--Artillery & Other Magic-Based Weaponry Corps ~~ Colonel Twilight Sparkle
--Firing & Shell-Management Division ~~ 1st Lieutenant Lyra
--Firing Brigade ~~ 2nd Lieutenant OC Spot
--Shell-Management Brigade ~~ 2nd Lieutenant OC Spot
--Management, Transport & Repair Division ~~ Colonel Twilight Sparkle
--Management Brigade ~~ 2nd Lieutenant OC Spot
--Transport Brigade ~~ 2nd Lieutenant OC Spot
--Repair Brigade ~~ 2nd Lieutenant OC Spot
--Heavy Infantry & Short-Range Projectile Corps ~~ Major Applejack Apple
--Boulder-Bucker Division ~~ Major Applejack Apple
--Anti-Charge Division ~~ 1st Lieutenant Macintosh Apple
--Light Infantry & Specialist Forces Corps ~~ Major Pinkie Pie
--Light Infantry Division ~~ 1st Lieutenant Bon Bon
--Specialist Forces Division ~~ Major Pinkie Pie
--Scout Brigade ~~ Chief Warrant Officer 5 Gilda (of the Tactical Operations & Strategic Warfare Corps)
--Messenger Brigade ~~ 2nd Lieutenant Derpy Hooves
--Big Boom Brigade ~~ 2nd Lieutenant OC Spot
--Cavalry & Air Assault Corps ~~ Major Rainbow Dash
--Cavalry Division ~~ Major Rainbow Dash
--Lancer Brigade ~~ Major Rainbow Dash
--Fly-By Bomb Brigade ~~ 2nd Lieutenant Soarin'
--Air Assault Division ~~ 1st Lieutenant Spitfire
--Sky Scout Brigade ~~ 1st Lieutenant Spitfire
--Eyes in the Sky Brigade ~~ 2nd Lieutenant OC Spot
--Trap-Chaser Brigade ~~ 2nd Lieutenant OC Spot
--Non-Combat Field-Army
--Medical Care & Attention Corps ~~ Captain (P) Fluttershy
--Treatment & Recovery Division ~~ Captain (P) Fluttershy
--Emergency Care Division ~~ 1st Lieutenant Redheart
--Supply Transportation and Management Corps ~~ Captain (P) Rarity
--Supply Management Division ~~ 1st Lieutenant OC Spot
--Supply Transportation Division ~~ 1st Lieutenant OC Spot
--Field Engineer Brigade ~~ 2nd Lieutenant OC Spot
--Design & Development Division ~~ Captain (P) Rarity
--Design Brigade ~~ Captain (P) Rarity
--Development Brigade ~~ 2nd Lieutenant OC Spot
--Intelligence Field-Army
A/N: The Intelligence Field-Army only consists of the Tactical Operations & Strategic Warfare Corps, but the structure of the corps is rather complex. It is inter-twined with some of divisions and/or brigades that are under the other corps. The divisions/brigades in question are included under this corps as well as their original corps to maintain a total fluency of information among corps. Divisions and brigades from other corps are marked with an ** instead of the default --. Additionally, the only Warrant Officers in the REA are in this corps, and only answer to superior Warrant Officers, to LTC/B-CBG Briar, and the Princess.
--Tactical Operations & Strategic Warfare Corps (aka TacOS War Corps) ~~ Lieutenant Colonel/Combat-Brevet Brigadier General Briar
--Battlefield Strategy Division ~~ Lieutenant Colonel/Combat-Brevet Brigadier General Briar
--Scouting Division ~~ Chief Warrant Officer 5 Gilda
**Scout Brigade, Special Forces Division, Light Infantry & Specialist Forces Corps ~~ Chief Warrant Officer 5 Gilda
**Sky Scout Brigade, Air Assault Division, Cavalry & Air Assault Corps ~~ Warrant Officer 1 OC Spot (via 1st Lieutenant Spitfire)
**Design & Development Division, Supply Transportation and Management Corps ~~ Chief Warrant Officer 4 OC Spot (via Captain (P) Rarity)
**Design Brigade, " ~~ Warrant Officer 1 OC Spot (via Captain (P) Rarity)
**Development Brigade, " ~~ Warrant Officer 1 OC Spot (via 2nd Lieutenant OC Spot)
--Research Division ~~ Chief Warrant Officer 5 John [Classified]
--Research Collection Brigade ~~ Chief Warrant Officer 2 OC Spot
--Research Analysis Brigade ~~ Chief Warrant Officer 2 OC Spot
--Research Report Brigade ~~ Chief Warrant Officer 2 OC Spot
--Messaging Division ~~ Chief Warrant Officer 3 OC Spot
**Messenger Brigade, Specialist Forces Division, Light Infantry & Specialist Forces Corps ~~ Chief Warrant Officer 2 OC Spot (via 2nd Lieutenant Derpy Hooves)
**Eyes in the Sky Brigade, Air Assault Division, Cavalry & Air Assault Corps ~~ Chief Warrant Officer 2 OC Spot (via 2nd Lieutenant OC Spot)