23 SAS (23 Special Air Service regiment) is one of the Territorial Army's special forces regiments. The regular SAS regiment is 22 SAS, and originally there was one Special Air Service Reserve (SAS(R)) regiment based in the south of Britain known as 21 SAS. Later, 23 SAS was created to encompass the north of the country, including cities such as Newcastle upon Tyne. In the United Kingdom the Territorial Army is a part of the British Army composed of reserve units, or part-time soldiers. ... Jump to: navigation, search For other Special Air Services, see Australian Special Air Service Regiment and Special Air Service of New Zealand. ... The 21st Special Air Service Regiment (Artists) (Volunteers) is a special forces regiment of the British Territorial Army. ... This article is about a city in the United Kingdom. ...

In order to join a Territorial Army SAS regiment, individuals have to undergo a similar selection process to 22 SAS, albeit stretched over the period of more than a year. The TA SAS soldiers, although not part of the regular army, are still considered to be elite troops, and in times of war are said to be used in Long Range Reconnaissance behind enemy lines. Jump to: navigation, search For other Special Air Services, see Australian Special Air Service Regiment and Special Air Service of New Zealand. ...

Due to the nature of special forces units, soldiers are targets for terrorist attack, and therefore the highest standards of secrecy are maintained.