Special Air Service (SAS)
The Special Air Service (SAS) is special forces unit of the British Army. It specializes in counter-terrorism, hostage rescue, direct action, covert reconnaissance and other such activities. It was founded as a regiment in 1941 and was later reconstituted as a corps in 1950.
A team of 40 SAS personnel have volunteered to avenge the deaths of 13 US troops who lost their lives because of the suicide bombing near the airport in Kabul. This group will be involved in counter-terror operations against extremist groups like Islamic State Khorasan Province (IS-K). It is likely that this team will establish a base along the Afghan-Pakistan border for conducting covert operations against the terrorists in eastern Afghanistan.