
Arromanches Camp is a military installation operated by the Royal Marines at Instow in North Devon located 5.2 miles (8.4 km) south west of Barnstaple, Devon, and 3.2 miles (5.1 km) north east of Bideford, Devon, England.

The Battle of Bovey Heath took place on 9 January 1646 at Bovey Tracey and Bovey Heath during the First English Civil War. A Parliamentarian cavalry detachment under the command of Oliver Cromwell surprised and routed the Lord Wentworth's Royalist camp.

Bowden Fort is a former 19th-century fort, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the north east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.

Brownhill Battery is a former gun battery at Staddon Heights, Plymouth, Devon. It was one of a number of Plymouth fortifications to be recommended by the Royal Commission on the Defence of the United Kingdom in 1859. Construction began in 1861, at the same time as Staddon Fort and other defensive works at Staddon Heights. The battery was completed by 1868, but was left unarmed.

Royal Marines Barracks Chivenor is a British military base used primarily by 3 Commando Brigade. It is situated on the northern shore of the River Taw estuary, adjacent to the South West Coast Path, on the north coast of Devon, England. The nearest towns are Barnstaple and Braunton.

Chudleigh Fort is a fortress in East-the-Water, a suburb of Bideford in Devon in the UK. It was built in about 1642 during the English Civil War. Largely reconstructed in the 19th century, it has been a Grade II listed building since 1949.
Today Clyst Heath is a suburb to the south east of the city of Exeter, Devon, England. An area of relatively high ground to the west of the River Clyst, it remained heathland until the early nineteenth century when it was cultivated for the first time.

The Devon County War Memorial is a First World War memorial, designed by Sir Edwin Lutyens and situated on Cathedral Green in Exeter, the county town of Devon, in the south west of England. It is one of fifteen War Crosses designed by Lutyens with similar characteristics, and one of two to serve as a civic memorial in a city. The first proposal for the county's war memorial was to complete the construction of a cloister at Exeter Cathedral to be dedicated to Devon's war dead, but this scheme was abandoned due to lack of funds. After considering multiple proposals, the Devon County War Memorial Committee commissioned Lutyens to design a War Cross instead. The committee chose to site the memorial on the green of Exeter Cathedral after scouting several locations. A war memorial for Exeter itself was being considered concurrently, but the committees for the two projects failed to work together, resulting in two separate memorials—the county memorial by the cathedral and Exeter City War Memorial in Northernhay Gardens.

Egg Buckland Keep is a former 19th-century fortified barracks, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the north east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport. The keep was designed to house the garrison for the nearby Forder Battery, Bowden Fort and Fort Austin.

Exercise Fabius was a formal exercise for the Allied Operation Neptune in World War II. The other was Exercise Tiger, which had occurred a week earlier.

Exercise Tiger, or Operation Tiger, was one of a series of large-scale rehearsals for the D-Day invasion of Normandy, which took place in April 1944 on Slapton Sands in Devon. Coordination and communication problems resulted in friendly fire deaths during the exercise, and an Allied convoy positioning itself for the landing was attacked by E-boats of Nazi Germany's Kriegsmarine, resulting in the deaths of at least 749 American servicemen.

The Siege of Exeter (1642) or First Siege of Exeter took place during the First English Civil War from late December 1642 to early January 1643 when Royalists led by Sir Ralph Hopton attempted to capture the city and seaport of Exter from the Parliamentarians.

Forder Battery is a former 19th-century fort, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the north east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.

Fort Austin is a former 19th-century Fort, built as a result of the Royal Commission on National Defence of 1859. It was built to defend the landward approaches to the North East of Plymouth. This was part of an overall scheme for the defence of the Royal Naval Dockyard at Devonport. They were known as Palmerston Forts after the Prime Minister who championed the scheme.

Fort Efford is a former 19th-century Fort, built as a result of the Royal Commission on National Defence of 1859. It was built to defend the landward approaches to the North East of Plymouth. This was part of an overall scheme for the defence of the Royal Naval Dockyard at Devonport, Plymouth. They were known as Palmerston Forts after the Prime Minister who championed the scheme.

Fremington Army Camp was a military camp in the village of Fremington, Devon, England, which was used as a base to train the United States Army Air Corps. It was originally located there to be within easy marching distance from the railway station at the Quay.

Frobisher Battery is a former gun battery at Staddon Heights, Plymouth, Devon. The original battery at the site, Twelve Acre Brake Battery, was completed in 1867 with positions for three guns. In 1888–1892, a new battery was built on the site, and renamed Frobisher Battery in 1890. It was armed with one RML 12.5-inch 38-ton gun, which was intended to be used to bombard enemy ships attempting to enter Plymouth Sound.

Knowles Battery is a former 19th-century fort, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the north east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.

Laira Battery is a former 19th-century Fort, built as a result of the Royal Commission on National Defence of 1859. It was built to defend the landward approaches to the North East of Plymouth. This was part of an overall scheme for the defence of the Royal Naval Dockyard at Devonport. They were known as Palmerston Forts after the Prime Minister who championed the scheme.

Lentney Battery is a former 20th-century gun battery, built in 1905 as one of three 6-inch gun batteries to defend the Eastern approaches to Plymouth Sound, for the defence of the Royal Naval Dockyard at Devonport. It shared accommodation with the nearby Renney Battery.

Lord Howard's Battery is a former gun battery built in 1908–09 to defend the approach to HMNB Devonport through Plymouth Sound and Jennycliff Bay.

The RNAS Naval Air Station Prawle Point was a British First World War airfield outside the village of East Prawle in Devon, England and 2.6 miles (4.2 km) south east of Salcombe, Devon.

Royal Air Force Chivenor or RAF Chivenor was a Royal Air Force station located on the northern shore of the River Taw estuary, on the north coast of Devon, England. The nearest towns are Barnstaple and Braunton.

The Royal William Victualling Yard in Stonehouse, a suburb of Plymouth, England, was the major victualling depot of the Royal Navy and an important adjunct of Devonport Dockyard. It was designed by the architect Sir John Rennie and was named after King William IV. It was built between 1826 and 1835 and occupies a site of approximately 16 acres (65,000 m2) being half of Western Kings, north of Devil's Point.

The Battle of Sampford Courtenay was one of the chief military engagements in the Western Rebellion of 1549.

The Siege of Plymouth took place during the First English Civil War, when Royalist forces besieged Plymouth, in Devon, held by a Parliamentary garrison.

The Battle of Sourton Down was a successful Parliamentarian ambush at Sourton Down, in South West England, on 25 April 1643, during the First English Civil War. After a failed attack on Royalist-held Launceston, the Parliamentarians fell back on their base at Okehampton, pursued by a Royalist army under Sir Ralph Hopton, who marched overnight, planning to attack the town at dawn.

Staddon Fort is a 19th-century fort, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.

Stamford Fort is a 19th-century fort, built as a result of the Royal Commission on National Defence of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the landward approaches to the east of Plymouth, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport. It is 165 feet above sea level, between Jennycliffe Bay and Hooe Lake.

Royal Marines Tamar is a Royal Marines military installation specialising in landing craft training and operations located on the northern bank of Weston Mill Lake at the north end of HMNB Devonport at Plymouth in Devon.

The Siege of Tiverton took place in October 1645 during the First English Civil War, when a Royalist garrison surrendered to a detachment of the New Model Army.

The Battle of Torrington was a decisive battle of the south-western campaign of the First English Civil War and marked the end of Royalist resistance in the West Country. It took place in Torrington, Devon.

Royal Marines Turnchapel is a former Royal Marines military installation in South Devon located 1.2 miles (1.9 km) east of Plymouth, Devon, and 3.6 miles (5.8 km) north east of Torpoint, Cornwall, England.

Watch House Battery is a former 19th-century gun battery, built as one of a number of batteries to defend the Eastern approaches to Plymouth Sound, for the defence of the Royal Naval Dockyard at Devonport.

The Western King's Redoubt is an 18th and 19th-century artillery battery in Plymouth, Devonshire, England, upgraded as a result of the Royal Commission on the Defence of the United Kingdom of 1859. Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the seaward approaches to the Hamoaze, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.