OCR Specification focus:
‘Definitions, origins (links with raids); organisation; growth; response from Anglo-Saxons (relationships between inhabitants and colonists).’
The warfare, conflict, and strategy of the Danelaw reflected a distinctive Scandinavian approach to conquest and control, shaped by raids, settlement, and responses from Anglo-Saxons.
Definitions and Origins
The Danelaw was the area of England under Viking control during the late 9th and 10th centuries. Its origins lay in sustained raids that transitioned into permanent settlement. Beginning with the campaigns of the Great Heathen Army in the 860s, Viking leaders sought not just plunder but also territory. This shift reflected both the exhaustion of opportunities for raiding and the attraction of fertile English land.
Danelaw: The region of England under Viking law, culture, and governance, emerging from conquest and settlement after the late 9th century raids.
The origins of the Danelaw thus highlight the overlap between military strategy and colonisation. Viking warriors, initially raiders, established control through force, treaties, and settlement, cementing the Danelaw as both a legal and territorial entity.
Organisation of the Danelaw
Once established, the Danelaw was organised through structures that ensured military control and societal stability:
Burhs and fortified settlements safeguarded key locations.
Thing assemblies governed local disputes, rooted in Scandinavian tradition.
Warrior retinues upheld the authority of Viking jarls and kings.
Taxation and tribute systems sustained armed forces and reinforced dominance.
This organisation gave the Vikings the capacity to defend their territory against Anglo-Saxon counter-attacks and allowed them to expand influence deeper into English lands.
Thing: A Scandinavian governing assembly where free men gathered to settle disputes, make laws, and decide matters of war and peace.
By transplanting Scandinavian political and military structures, the Vikings transformed parts of England into societies reflecting Norse cultural and legal norms.
Growth of the Danelaw
The Danelaw expanded beyond its initial conquests due to:
Military victories by Viking leaders against Anglo-Saxon kingdoms.
Strategic treaties, such as the Treaty of Wedmore (878), which formalised boundaries after Alfred the Great’s victory at Edington.
Migration and settlement, with Viking families and farmers following warriors to colonise the land.
This growth ensured that the Danelaw was not merely an occupation zone but a thriving society with a distinctive Viking character. It covered a vast swathe of northern and eastern England, embedding itself in the political map of the era.

Map of England and Wales c. 878 illustrating the division after Alfred’s victory at Edington and the ensuing peace. The shaded Danelaw area shows Viking-held territory versus Anglo-Saxon Wessex, clarifying the strategic frontier. Extra labels such as Wales appear beyond syllabus scope. Source
Anglo-Saxon Responses
The Anglo-Saxon kingdoms, particularly Wessex, had to adapt strategies to survive and resist the Danelaw:
Fortification programmes, notably Alfred’s system of burhs, created defensive networks.

Distribution map of burhs from the 10th-century Burghal Hidage. It visualises the fortified network created under Alfred and Edward the Elder to contain Viking power. The detailed tax/mileage data are omitted, with the focus on locations and strategy. Source
Military reforms, including the reorganisation of the fyrd (militia), improved rapid response to Viking attacks.
Diplomatic treaties with Viking leaders aimed to stabilise frontiers.
Religious framing, portraying Vikings as heathen invaders, unified Anglo-Saxon identity against them.
Fyrd: The Anglo-Saxon militia system in which free men served in local defence forces when called upon by their king or ealdorman.
These responses highlight the intense conflict between Viking settlers and Anglo-Saxon rulers. While sometimes marked by peace treaties, warfare was recurrent, with shifting boundaries of power.
Warfare and Strategy in Practice
The Viking strategy in the Danelaw combined both offensive and defensive elements:
Raiding campaigns to weaken Anglo-Saxon resistance and secure wealth.
Wintering armies, establishing bases in English territory to consolidate gains.
Integration of settlers, ensuring long-term control beyond short-term plunder.
Use of rivers and ships for mobility, allowing rapid strikes across England.
Anglo-Saxon strategy, by contrast, emphasised endurance and consolidation:
Holding key strongholds to resist further expansion.
Counter-offensives under leaders such as Alfred and later Athelstan, aiming to reclaim land.
Assimilation policies, incorporating Vikings into English structures when possible.
The interplay of these strategies defined the military landscape of late 9th- and 10th-century England.
Relationships Between Inhabitants and Colonists
A crucial aspect of the Danelaw’s warfare and conflict was the relationship between Viking colonists and Anglo-Saxon inhabitants. While warfare brought initial conquest, long-term occupation required coexistence:
Mixed communities emerged, with intermarriage and cultural blending.
Trade and economic exchange tied Anglo-Saxons and Vikings together despite conflict.
Legal pluralism allowed Norse and English customs to coexist in some regions.
Occasional uprisings and rebellions reflected ongoing tensions between groups.
These relationships show that the Danelaw was not solely defined by war. Yet, the constant threat of conflict shaped the way inhabitants and colonists interacted, with military dominance ensuring Viking supremacy.
FAQ
The Danelaw’s location in fertile and river-rich eastern England gave Vikings advantages in both settlement and warfare. Rivers like the Trent and Ouse provided access for Viking longships, allowing swift raids inland.
The flat terrain of eastern England also enabled easier movement of troops and supplies, supporting the consolidation of Viking control. Geography thus directly influenced both their strategic mobility and their ability to sustain colonisation.
The Treaty of Wedmore (878) set a boundary between Alfred’s Wessex and Guthrum’s Viking-controlled territory.
It reduced immediate conflict by formalising territorial divisions.
It gave Vikings legitimacy within their sphere of control.
It allowed Alfred to reorganise Wessex’s defences and prepare for future campaigns, shaping subsequent Anglo-Saxon strategy.
The treaty did not end conflict, but it reframed warfare as a contest over maintaining and expanding those defined borders.
Viking longships allowed forces to move quickly between coastal bases and inland settlements via rivers.
This mobility enabled:
Rapid concentration of troops at weakly defended sites.
Seasonal campaigning with swift retreats to fortified strongholds.
Flexibility to raid or reinforce settlements across a wide area.
Such naval strategy frustrated Anglo-Saxon defenders, who relied more on land-based response systems and could be outmanoeuvred.
Though conquest was rooted in violence, everyday life in the Danelaw often required cooperation.
Trade encouraged economic interdependence.
Intermarriage created kinship links across cultural groups.
Shared agricultural practices meant cooperation in managing land.
Yet these relationships also created flashpoints. Anglo-Saxon resentment of tribute demands or differing legal customs could provoke unrest, ensuring that conflict remained a constant possibility beneath outward coexistence.
The Burghal Hidage, a 10th-century document, listed fortified burhs and the manpower required to defend them.
It shows:
A systematic effort to counter Viking strategies by creating a permanent defensive grid.
Coordination between military, economic, and administrative systems in Wessex.
An Anglo-Saxon recognition that resisting the Danelaw required not only armies but organised infrastructure.
This document reveals the long-term strategic thinking that gradually weakened Viking dominance in England.
Practice Questions
Question 1 (2 marks):
Define the term Danelaw and explain its origins.
Mark Scheme:
1 mark for stating that the Danelaw was the area of England under Viking control or ruled by Viking law.
1 mark for mentioning its origins in Viking raids and settlement following the campaigns of the Great Heathen Army in the late 9th century.
Question 2 (6 marks):
Explain how the Anglo-Saxons responded strategically to the Viking control of the Danelaw.
Mark Scheme:
1 mark for describing the use of fortification programmes, such as Alfred’s burh system.
1 mark for noting the reorganisation of the fyrd (Anglo-Saxon militia).
1 mark for identifying diplomatic treaties with Viking leaders to stabilise boundaries.
1 mark for describing the religious framing of Vikings as heathen invaders to unify Anglo-Saxon resistance.
1 mark for noting counter-offensives, e.g., under Alfred or later Athelstan, to reclaim land.
1 mark for describing assimilation policies, such as incorporating Vikings into Anglo-Saxon structures when possible.
(Maximum 6 marks; any 6 valid points accepted.)