Pre- and early history Hedges are one of the most natural forms of boundary defence and enclosure. Their simplest and, even today, most common use is as a garden hedge. Even in
prehistoric and
early historic times, people built defensive enclosures using branches and
brambles for the protection of storage places (including caves), fortified residences, houses, estates and settlements from attack by
predators or enemies. This is common even today amongst
nomadic tribes.
Julius Caesar tells e.g. of thick
Hagen which were laid out by the
Nervii, one of the most powerful
Belgic tribes: A more complicated form of defence was the classic
ditch and
rampart system. In A.D. 16,
Tacitus reported a border fortification built by the
Angrivarii, the
Angrivarian Wall, which was erected to defend them against the
Cherusci. A
great battle was fought there in 16 AD. The most important border fortifications were said to have been at
Rehburg-Loccum. The
Anglo-Saxon Chronicle speaks of a Bebbanburg around A.D. 547, which was
"first fortified by a hedge". The
capitularies of
Charlemagne also mention
"ramparts planted with hedges". In
England, similar fortifications are called "
dykes" or
ditches. For example,
Bokerley Dyke was built around A.D. 360, transitioning into
Grim's Ditch which dates to 300 B.C., or the 270-kilometre-long
Offa's Dyke. In the case of the Normans, too, the existence of
Hagediken - embankments planted with hedges - is recorded.
Middle Ages and Modern Period at
Kircheib on a 1605 map As a rule, mediaeval
landwehrs consist of one or more impenetrable lines of hedging made of
pleached
hornbeam – (the
Gebück) - underplanted with thorny bushes such as
blackthorn,
hawthorn,
dog rose,
brambles or
holly – (the
Gedörn). In addition there was also usually a combination of one or more of the following elements: • One or more parallel earthen ramparts between or on which the hedge was planted • A path for the maintenance of the hedge and for patrolling the
landwehr • Ditches in front, between and behind the ramparts, which were sometimes filled with water, depending on the location e.g. in a valley. As a rule, the ramparts were made from the excavation of the ditches. •
Watchtowers,
schanzen,
abatis and
haspels at the checkpoints where roads passed through the
landwehr • A "wet border" created by flooding and water ditches From the time after the
Frankish colonisation of Central Europe until the late
Late Middle Ages, the creation of fixed sovereign territories ruled by lords and princes led to the establishment of territorial
landwehrs which enclosed the land which was legally held by states and settlements. The territories of
Gaue, counties (
Zenten), regional magistracies (often coterminous with church parishes),
Ämter and even entire states were enclosed by
landwehrs in the form of defensive hedges. There were also
Landhagen and
Stadthagen, which were arranged in a circular shape around smaller settlements. The
Landhegen bordered and protected entire regions as well as the areas surrounding towns and cities, for example the almost 70-kilometre-long
Aachen Landgraben the former
Aachener Reich, similar to the ones in
Frankfurt,
Rothenburg,
Lübeck or
Mühlhausen. The traces of the
Rothenburg Landhege are still about 60 km long today, the
Mühlhäusen Landgraben, still some 26 km long, recalls the border between Mühlhausen and
Eichsfeld. These earthworks served several functions. They marked, protected and helped to bring peace to territories that were under their reeve (
Greve),
count (
Graf) or
Amtmann. This grouping of tasks for the protection of defended territories (
Landwehr) resonated with the term
Hege (a range of measures concerning hunting and wildlife) in terms such as
Hege, Heege, Hag, Haag or
Hecke, but also with the term
Schutzhecke or "protective hedge". Numerous
toponyms such as
Zarge, Gebück, Wehrholz or
Gehag recall different variants of these defensive structures as e.g. hedges, excavation works or staggered constructions. The main objective of these barriers was to protect the population and their land from the hostile claims, raids, predations and warlike assaults of other princes.
Landwehrs were a clear border marking and, at the same time, when they defined the external border to another territory, also a customs border. Even within a territory, there were sometimes
landwehrs which separated the individual districts (
Ämter) from one another by the inclusion of streams and other natural obstacles. These 'internal' or 'intermediate'
landwehrs (
Zwischenlandwehren), were generally not as elaborate as those on the external borders. One particular variant was the so-called
letzi in Switzerland, where it was often sufficient just to secure the access routes to a valley. Many of the battles of the
Old Confederation with the Habsburgs took place at such
letzis, such as
Battle of Morgarten,
Battle of Näfels and
Battle of Stoss. Some
landwehrs also functioned as a form of outwork for
fortresses. They were built with the character of
fieldworks as a first line of defence against enemy attack. Used until the
Modern Era, they were designed militarily, in the form of
chevaux de frise, to force the attacker of a fortress into having to conduct a
siege even before reaching the fortress. Their modern successors include the
barbed wire used in both world wars. The route of many simple
landwehrs shows, according to new research, that they were completely unsuitable for defence purposes in many places. From this it can be concluded that some of these installations were mainly used for border marking and collecting customs duties. They nevertheless restricted the free mobility of enemy troops, so that they were certainly of some military utility. For example, the
Stadthagen around
Warendorf in the
Thirty Years' War succeeded in protecting the town. Although the enemy did in fact break into the municipal territory, they did not risk a major attack simply because of the danger, in a counter-attack, of not being able to beat a
retreat quickly enough through the narrow breach in the
landwehr. As a border fortification around areas that had been given specific rights,
landwehrs had gaps in some places for roads, for counter-attack routes or for trade. These gaps (called
Schlags) were guarded by simple
tollgates, by side roads (so-called
Schlingen), or - by means of towers (
watchtowers,
Wighäuser or
gate towers). At the border crossing points there were usually also
customs posts. The lucrative right to charge tolls (
Zollrecht), often in connection with the right to sell alcohol (
Krugrecht) could be given to local farmers. == Construction ==