Question: What country does Elstree and Watling Street run through?

Context articles: Watling Street (book)
Two Mile Ash
Richmond Tower (Kilmainham)
Burnt Oak tube station
Weddington, Nuneaton
Watling Street
Akeman Street
Elstree
Watling Street (Dartford)
A5183 road

Watling Street: Travels Through Britain and Its Ever-Present Past is the fifth book by the British journalist, novelist and cultural historian John Higgs.
 The book charts Higgs's journey along Watling Street, one of the oldest roads in Britain, from Dover to Anglesey, during which journey he records the so-called hidden history of this ancient path from its first creation up to the present day.
 As well as recording the historical figures and their stories surrounding the road, Higgs also meets up with and interviews contemporary figures along the way such as Alan Moore.
 The author describes the history of the road as, "Watling Street is a road of witches and ghosts, of queens and highwaymen, of history and myth, of Chaucer, Dickens and James Bond.
 Along this route Boudicca met her end, the battle of Bosworth changed royal history, Bletchley Park code breakers cracked Nazi transmissions and Capability Brown remodelled the English landscape.
Two Mile Ash is a district in north west Milton Keynes, two miles south of Stony Stratford, just off Watling Street.
 The district was named after the Two Mile Ash toll gate on Watling Street.
 It is one of the larger districts, but a large part of its area is taken up by an 18-hole golf course.
 Consequently, many of the streets here are named after famous golf courses.
 The district was one of the first to be built in the (mainly) private housing period of the development of Milton Keynes.
The Richmond Tower is an historical gateway to the Royal Hospital, Kilmainham, Dublin, designed by Francis Johnson and named after the Duke of Richmond, the Lord Lieutenant at the time.
 The gateway originally stood beside the river Liffey at Barrack Bridge at the junction of Watling Street and Victoria Quay, but had to be moved after the building of near by Kingsbridge Station in 1846 caused traffic congestion at the site.
 The tower was dismantled and erected at its present location the following year.
 Following the move the structure was renamed from Watling Street Gatehouse to Richmond Tower, though it is sometimes referred to as the West Gate due to its location west of the main hospital building.
Burnt Oak is a London Underground station in Burnt Oak, north London, on Watling Avenue, off the A5 (the Edgware Road, originally a Roman Road known as Watling Street).
 The station is on the Edgware branch of the Northern line, between Edgware and Colindale stations, and in Travelcard Zone 4.
Weddington is a small parish in Nuneaton, Warwickshire, England, bounded on the northeast by Watling Street, and on the west by the River Anker.
 The Ward population taken at the 2011 census was 7,256.
 It is surrounded on the west and south by the Anker, and comprises the church, Rectory, Church Farm, the Grove, and the grounds of the former Weddington Castle.
 A branch road leading south from Watling Street passes through the village.
Watling Street is a route in England and Wales that began as an ancient trackway first used by the Britons, mainly between the areas of modern Canterbury and St Albans using a natural ford near Westminster.
 The Romans later paved the route, which then connected the Kentish ports of Dubris (Dover), Rutupiae (Richborough), Lemanis (Lympne), and Regulbium (Reculver) to their bridge over the Thames at Londinium (London).
 The route continued northwest past Verulamium (St Albans) on its way to Viroconium (Wroxeter).
 The Romans considered the continuation on to Blatobulgium (Birrens) beyond Hadrian's Wall to be part of the same route, leading some scholars to call this Watling Street as well, although others restrict it to the southern leg.
 Watling Street was the site of Boudica's defeat by the Romans and was later the southwestern border of the Danelaw.
 In the early 19th century, the course between London and the Channel was paved and became known as the Great Dover Road: today, the route from Dover to London forms part of the A2 road.
 The route from London to Wroxeter forms much of the A5 road.
 At various points along the historic route, the name Watling Street remains in modern use.
Akeman Street was a major Roman road in England that linked Watling Street with the Fosse Way.
 Its junction with Watling Street was just north of Verulamium (near modern St Albans) and that with the Fosse Way was at Corinium Dobunnorum (now Cirencester).
 Its course passes through towns and villages including Hemel Hempstead, Berkhamsted, Tring, Aylesbury, Alchester (outside modern Bicester), Chesterton, Kirtlington, Ramsden and Asthall.
Elstree is a village in the Hertsmere borough of Hertfordshire, England, on the former A5 road, which followed the course of Watling Street, approximately thirteen miles northwest of central London.
 In 2011, its population was 5,110.
 It forms part of the civil parish of Elstree and Borehamwood, originally known simply as Elstree.
Watling Street was a football ground in Dartford, England.
 Located adjacent to Watling Street, it was the home ground of Dartford F.C. from 1921 until 1992, and was also used by Maidstone United during their time in the Football League.
The A5183 road is a de-trunked section of the A5.
 It runs largely along Watling Street from a junction with the A5 and A41 near Elstree to a roundabout north-west of Dunstable, where it joins the present-day A5 which was re-routed east towards the M1 motorway along a new link road opened in May 2017.
 The original renumbering, from M1 junction 9 to Elstree, was to prevent drivers of heavy southbound vehicles assuming that a low number '5' indicated a superior quality road which this stretch is not as it is narrow in many places.