- () Logistic and Service Battalion - () Combat Medical Battalion - () 31st Cavalry Squadron - () 15th Combat Engineer Battalion - () 15th Signal Corp Battalion - () 15th Long Range Reconnaissance Patrols Company - () 4th Army Support Command - () 24th Logistic and Service Battalion - () 24th Maintenance Battalion - () 24th Ordnance Battalion - () 24th Transportation Battalion - () 24th Signal Corp Battalion - () 4th Development Division - () – US State Department cables leaked by Wikileaks in 2006 said: "The Development Division is itself a traditionally 'static unit' that provides engineering, construction and other support to local communities in the South. It is not formally charged with security operations. Indeed, Development Division officers were very proud in stating that they have better relations with the locals than other security elements — and have not been attacked while engaged in construction or relief efforts." 4th Development Regiment - () 4th Development Battalion - () 401st Combat Engineer Battalion - () 402nd Combat Engineer Battalion - () Military Districts - () 41st Military District - () 42nd Military District - () 43rd Military District - () 44th Military District - () 45th Military District - () 46th Military District - () Royal Thai Army Special Warfare Command () also known as Royal Thai Army Special force – headquartered in Thale Chup Son, Mueang Lopburi, Lopburi 1st Special Forces Division - () 1st Special Forces Regiment (Airborne) - () 2nd Special Forces Regiment (Airborne) - () 3rd Special Forces Regiment, King's Guard (Airborne) - () Ranger Battalion, King's Guard also known as Royal Thai Army Ranger - () Special Operation Battalion, King's Guard also known as Task Force 90 - () 4th Special Forces Regiment (Airborne) - () 5th Special Forces Regiment (Airborne) - () The creation of the 15th Infantry Division was announced in January 2005. Defence Minister, General Samphan Boonyanan, was quoted as saying that the new unit, dubbed the "Development Division", would not be a combat unit for fighting Islamic militants, but rather its main mission would be to assist local citizens and develop the region. The military will not ignore its general function of providing safety for the citizens of the region, he added. He said that troops for the new division would undergo training to give them a good understanding of local residents, the vast majority of whom are