2007, the 355th Wing was re-designated as the 355th Fighter Wing (355 FW) with only A-10 fighter aircraft assigned. Also in 2007, the 214th Reconnaissance Group (214 RG), an Arizona Air National Guard unit, was activated. As of October 2020, the 355 FW is composed of four groups: the 355th Operations Group (355 OG), the 355th Maintenance Group (355 MG), the 355th Mission Support Group (355 MSG), and the 355th Medical Group (355 MDG). Along with their tenant organizations, they make up the 6,100 airmen and 1,700 civilian personnel at Davis–Monthan AFB. The 355th Fighter Wing was re-designated 355th Wing on January 2, 2019. On 20 August 2020, the 355th Wing again realigned and now falls under the 15th Air Force Headquarters at Shaw AFB, SC. On 1 October 2021, the 418th Test and Evaluation Squadron was activated at David-Monthan to provide test and evaluation of new tactics, techniques and procedures for the EC-130H Compass Call and HC-130J Combat King II. Role and operations 355th Wing The host wing at Davis–Monthan is the 355th Wing, which includes: 355th Operations Group (355 OG) The 355 OG consists of six squadrons and over 450 personnel employing A-10 aircraft and an AN/TPS-75 radar system. It provides war-fighters with forces for close air support (CAS), air interdiction (AI), forward air control (FAC), combat search and rescue (CSAR), ground-based tactical air control, and airbase operations. It also conducts all formal course directed aircraft initial qualification/ re-qualification training. All active duty aircraft assigned to Davis–Monthan Air Force Base carry the tail code "DM". 354th Fighter Squadron (A-10C) "Bulldogs", blue tail flash 357th Fighter Squadron (A-10C) "Dragons", yellow tail flash 358th Fighter Squadron (A-10C) "Lobos", black tail flash (inactivated 21 February 2014) 355th Operations Support Squadron 355th Training Squadron 607th Air Control Squadron 355th Mission Support Group (355 MSG) – The 355 MSG consists of about 2,000 military and civilian personnel in six diverse squadrons that train, equip and provide agile combat mission support, including civil engineering, communications, contracting, transportation, fuels, supply, deployment readiness, personnel, security forces, and services for immediate worldwide deployment of combat support elements. The group also provides an effective in-garrison support infrastructure and quality of life services for 26 wing and 32 associate units spanning a 60,000-person, community, one of the largest in Air Combat Command. 355th Maintenance Group (355 MXG) – The 355 MXG supports eight flying squadrons, providing organizational and intermediate