Cavalry Squadron, 6th Cavalry Regiment - () 7th Cavalry Regiment - () 8th Cavalry Squadron, 7h Cavalry Regiment - () 14th Cavalry Squadron, 7th Cavalry Regiment - () 2nd Army Support Command - () 22nd Transportation Battalion - () 22nd Logistic and Service Battalion - () 22nd Maintenance Battalion - () 22nd Ordnance Battalion - () 22nd Signal Corp Battalion - () 22nd Combat Medical Battalion - () 2nd Development Division - () 2nd Development Regiment - () 2nd Development Battalion - () 2nd Combat Engineer Regiment - () 201st Combat Engineer Battalion - () 202nd Combat Engineer Battalion - () Military Districts - () 21st Military District - () 22nd Military District - () 23rd Military District - () 24th Military District- () 25th Military District - () 26th Military District - () 27th Military District - () 28th Military District- () 29th Military District - () 210th Military District - () 3rd Army Area () – headquartered in Phitsanulok, responsible for the northern and northwestern parts of the kingdom. 4th Infantry Division - () (Fort King Naresuan Maharat, Phitsanulok Province) 4th Infantry Regiment - () 1st Infantry Battalion 2nd Infantry Battalion 3rd Infantry Battalion 14th Infantry Regiment - () 1st Infantry Battalion 2nd Infantry Battalion 3rd Infantry Battalion 4th Field Artillery Regiment - () 4th Field Artillery Battalion 104th Field Artillery Battalion 9th Cavalry Squadron - () 4th Reconnaissance Cavalry Company - () 4th Combat Engineer Battalion - () 4th Signal Corp Battalion - () 4th Combat Medical Battalion - () 4th Long Range Reconnaissance Patrols Company - () 7th Infantry Division - () (Fort Chao Khun Nen, Chiang Mai Province ) 7th Infantry Regiment - () 1st Infantry Battalion 2nd Infantry Battalion 5th Infantry Battalion 17th Infantry Regiment - () 2nd Infantry Battalion 3rd Infantry Battalion 4th Infantry Battalion 7th Field Artillery Regiment - () 7th Field Artillery Battalion 17th Field Artillery Battalion 1st Cavalry Division - () (Fort Phokhun Pha Mueang, Phetchabun Province) 12th Cavalry Squadron, 1st Cavalry Division - () 2nd Cavalry Regiment - () 7th Cavalry Squadron, 2nd Cavalry Regiment - () 10th Cavalry Squadron, 2nd Cavalry Regiment - () 15th Cavalry Squadron, 2nd Cavalry Regiment - () 3rd Cavalry Regiment - () 13th Cavalry Squadron, 3rd Cavalry Regiment - () 18th Cavalry Squadron, 3rd Cavalry Regiment - () 26th Cavalry Squadron, 3rd Cavalry Regiment - () 21st Field Artillery Regiment - () 20th