The regiment traces its lineage to
18 Signal Regiment formed in 1959 in
Singapore as part of the
Far East Land Forces (FARELF) which was disbanded on 1 December 1971. 18 (UKSF) Signal Regiment was established in April 2005 at the same time as the
Special Reconnaissance Regiment (SRR). The establishment of the SRR was announced by the
Secretary of State for Defence in the
House of Commons. The regiment was formed around the existing communication capabilities of the
Special Air Service (SAS) and
Special Boat Service (SBS), namely 264 (SAS) Signal Squadron based at
Stirling Lines,
Herefordshire, SBS Signal Squadron based at
RM Poole,
Dorset and 63 (SAS) Signal Squadron (V) of the
Territorial Army (now known as Army Reserve). 63 (SAS) Signal Squadron (V) was formed on 1 April 1967 to support
21 SAS and
23 SAS from elements of 41 Signal Regiment, 63 Signal Regiment, 327 Signal Squadron and 115 Field Squadron
Royal Engineers. The regiment also incorporated 267 (SRR) Signal Squadron to support the SRR and a new squadron 268 (UKSF) Signal Squadron. 268 (UKSF) Signal Squadron incorporated the strategic communications element from 264 (SAS) Signal Squadron which provided long range strategic communications. ==Cap badge==