The Army Cadet Force (ACF) is a cadet organisation based in the United Kingdom. It is a voluntary youth group sponsored by the Ministry of Defence (British Army). Local units of the ACF, called Detachments, are based in towns and villages across the UK and formed of those cadets and Cadet Force Adult Volunteers (CFAVs) parading together at that location.

Detachments are grouped into Areas, which may also be termed Company, Squadron, Battery or Group; which are grouped into Counties, also known as Sectors or Battalions. ACF Counties may encompass one or more geographical counties. Counties are commanded by British Army Regional Points of Command (RPOCs), which report to Regional Command. Each RPOC has a Cadets Branch, responsible for policy and administrative support, and Cadet Training Team, formed of Full-time Reservists and CFAVs who provide support and senior cadet training.^[1]

Detachments may be numbered, named for the locality in which it resides, named in accordance with specific regimental or historical links, or a combination of those. Each detachment, and in some cases entire Areas and Counties, will be affiliated with a Regiment or Corps of the British Army, and wear their insignia including cap badge, beret and stable belt.

The following list is broken down into RPOCs, Counties, Areas and Detachment localities.

The City and County of Bristol ACF is split into 3 companies and 1 Squadron (A, C and Chanel Islands Coy)(B Squadron) and has detachments in Bristol (Bishopsworth, Brislington, Clifton, Hanham, Horfield Common, Keynsham, Kingswood, Mangotsfield, Oldland Common, Patchway, Pilning, Purdown, Shirehampton, Speedwell, St George, Stockwood, Stoke Gifford, Winterstoke Road, Yate), Frampton Cottrell and Thornbury. Speedwell detachment shares its unit base with Whitfield Corps of Drums. Also, a fourth company( D coy) exists, although informally, and contains only one detachment which is officially counted as a unit within the CCF.

Cornwall Cadet Battalion (The Rifles) ACF comprises three companies:

• Gibraltar Company has detachments in Camborne, Falmouth, Hayle, Helston, Redruth, Penryn, Penzance, Isles of Scilly and Cornwall College.
• Inkerman Company has detachments in Bude, Liskeard, Looe, Lostwithiel, Launceston, Saltash and Torpoint.
• Lucknow Company has detachments in Bodmin, Newquay, St Austell, St Blazey, Truro and Wadebridge.

Devon ACF is broken down into 4 Companies with its headquarters in Exeter.^[59] Devon ACF's regimental affiliation is to the Rifles, an Infantry Regiment in the British Army which counts the Devonshire and Dorset Regiment amongst its antecedent regiments. The Detachments of Devon ACF are as follows:

• A (Aubers) Company (Exeter and East Devon)^[60] - Wyvern (Exeter), West Exe (Exeter), Cranbrook (Exeter), Exmouth, Crediton, Honiton, Cullompton, Tiverton, Sidmouth, Uffculme
• B (Bois des Buttes) Company (Plymouth)^[61] - Tavistock, Plymstock, Plympton, Mutley, Marine Academy Plymouth, All Saints Academy, Ivybridge, Crownhill.
• C (Cambrai) Company (North Devon)^[62] - South Molton, Okehampton, Holsworthy, Ilfracombe, Torrington, Braunton, Bideford, Barnstaple, Chulmleigh
• D (Delville Wood) Company (Torbay)^[63][64] - Bovey Tracey, Newton Abbot, Paignton, Teignmouth, Ashburton, Torquay, Totnes

Devon ACF also maintains a Corps of Drums Detachment, whose cadets are normally drawn from across the county's existing Detachments. The Corps of Drums enables cadets to attain qualifications within the Army Proficiency Certificate Music Syllabus.

Dorset ACF^[65] consists of one battalion sized unit containing 4 companies with its headquarters in Dorchester.^[66]

• E (El Alamein) Company (The Rifles) has detachments in Bournemouth (Boscombe), Christchurch, Lytchett Matravers, Parkstone, Poole, Rossmore and Wallisdown.
• N (Normandy) Company has detachments in Blandford (Rifles), Gillingham (Rifles), Shaftesbury (Rifles), Sherborne (Rifles), West Moors (RLC) and Wimborne (RTR)..
• W (Waterloo) Company Beaminster (Rifles), Bovington (RTR), Bridport (Rifles), Dorchester (Rifles), Lyme Regis (RWxY), Portland (Rifles) and Weymouth (Rifles).

Gloucestershire Cadet Battalion (The Rifles) ACF has detachments in Bishop's Cleeve, Bourton-on-the-Water, Brockworth, Cheltenham, Cinderford, Cirencester, Coleford, Dursley, Fairford, Gloucester (Eastern Avenue, Malmesbury Road, Milton Avenue), Innsworth, Moreton-in-Marsh, Newent, Stonehouse, Stroud, Tetbury, Tewkesbury and Wotton-under-Edge.

Somerset Cadet Battalion (The Rifles) ACF has detachments in: Gibraltar Company - Burnham-on-Sea, Cheddar, Clevedon, Nailsea, Portishead, Weston-Super-Mare, Worle, Yatton Jellalabad Company - Bridgwater, Cannington, Doniford, Minehead, Taunton, (Bishops Hull, Bishops Foxes and Priorswood), Wellington. Normandy Company - Bath, Coleford, Frome, Glastonbury, Midsomer Norton, Paulton, Shepton Mallet, Wells. Salamanca Company - Bruton (Sexeys School), Castle Cary, Chard, Crewkerne, Ilminster, Langport, Martock, and Yeovil.

Wiltshire ACF has 4 companies. Their affiliate regiments are the Rifles, the Royal Artillery, the Tank Regiment, the Royal Corps of Signals and the Wessex Yeomanry.

A (Ferozeshah): Abbey Park School, Swindon Academy, Dorcan Academy, Royal Wooton Basset, Church Place

B (Anzio): Abbeyfield, Calne, Colerne, Corsham Devizes, Marlborough

C (Arakan): Melksham, Trowbridge, Warminster, Westbury, Lavington, Tisbury

D (Gallipolli): Larkhill, Sarum Academy, Old Sarum, Downton, Bulford