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International Security Assistance Force

Following the Coalition attack on Afghanistan and the flight of Taliban forces from Kabul and other major cities, the international community formed the International Security Assistance Force to maintain security in Kabul and provide assistance until such time as the Afghan government was able to provide its own security and the situation was stabilised.

In it's original compositions, the International Security Assistance Force comprised:

A Multinational force headquarters, centered around HQ 3(UK) Division.
A Brigade headquarters forced around HQ 16 Air Assault Brigade (UK).
Two infantry battlegroups. 2nd Battalion, The Parachute Regiment and a German-led battalion which included Dutch, Austrian and Danish troops.
Other infantry units were provided by France, Italy and Turkey.
France contributed a reconnaissance squadron.
An Engineer group was comprised of troops from Greece, UK, Italy and Spain.
Responsibility for clearing up Afghanistan after decades of war was given to Explosive Ordnance Disposal troops from Denmark, France, Germany, Norway and Spain.
Medical personnel were provided from the UK, Germany and Portugal.
Logistics provided by the UK, Bulgaria, France, New Zealand, Norway and Spain.
Germany and Spain provided helicopter support.
Military Police were deployed from the UK, Germany and Romania.
Air transport support was provided by the UK, Belgium, Germany, Greece, Italy, Netherlands, Portugal, Romania and Spain.
Finland, Italy and Sweden provided additional specialist troops.
Numbering some 5,000 personnel in all.

The British contribution included 300 RAF and Army personnel in the initial operation of Kabul Airport, and these units were deployed as part of the 1,800-strong ISAF contingent from the UK:

3(UK) Division Headquarters and Signal Regiment Bulford
16 Air Assault Brigade Headquarters and Signal Squadron
2nd Battalion, The Parachute Regiment, including a Gurkha company
33 (EOD) Engineer Regiment
36 Engineer Regiment (including Queen's Gurkha Engineers)
13 Air Assault Support Regiment
16 Close Support Medical Regiment
30 Signal Regiment
9 Parachute Squadron, Royal Engineers
23 Pioneer Regiment RLC
8 Fuel Support Company
156 Provost Company

Royal Air Force airfield personnel
Tactical Communications Wing
5131 Bomb Disposal Squadron
RAF Regiment
Movements specialists