The Battle of Dunbar was fought between the English New Model Army, under Oliver Cromwell, and a Scottish army commanded by David Leslie on 3 September 1650 near Dunbar, Scotland. The battle resulted in a decisive victory for the English. It was the first major battle of the 1650 invasion of Scotland.
After Charles I's execution in 1649, the English Rump Parliament established a republican Commonwealth in England. When their erstwhile ally, Scotland, recognised his son Charles II as king of all of Britain on 1 May 1650 and began recruiting an army to support him, the English dispatched the New Model Army, under the command of Cromwell. The army crossed into Scotland on 22 July, with a force of over 16,000 men. The Scots withdrew to Edinburgh, stripping the land of provisions. Cromwell attempted to draw the Scots out into a set piece battle, but they resisted, and Cromwell was unable to break through their defensive line. At the end of August, with his army weakened through disease and lack of food, Cromwell withdrew to the port of Dunbar. The Scottish army followed and took up an unassailable position on Doon Hill, overlooking the town. On 2 September, although many of their most experienced men had been dismissed in religious purges, the Scots advanced towards Dunbar and the English took up positions outside the town.
Before dawn on 3 September the English launched a surprise attack on the Scots, who were poorly prepared. The fighting was restricted to the north-eastern flank with the main contingents of English and Scottish cavalry fighting inconclusively, as did the English and Scottish infantry. Due to the terrain Leslie was unable to reinforce the fighting, while Cromwell used his last reserve to outflank the Scots. The Scottish cavalry broke and routed; the Scottish infantry made a fighting retreat but suffered heavy casualties. Between 300 and 500 Scots were killed, approximately 1,000 wounded and at least 6,000 were taken prisoner from an army of 12,500 or fewer.
After the battle, the Scottish government took refuge in Stirling, where Leslie rallied what remained of his army. The English captured Edinburgh and the strategically important port of Leith. In the summer of 1651 the English crossed the Firth of Forth to land a force in Fife; they defeated the Scots at Inverkeithing and so threatened the northern Scottish strongholds. In response, Leslie and Charles II marched the Scottish army south in an unsuccessful attempt to rally Royalist supporters in England. The Scottish government, left in an untenable situation, surrendered to Cromwell, who then followed the Scots south. At the Battle of Worcester, precisely one year after the Battle of Dunbar, Cromwell crushed the Scottish army, ending the war.
Background
First and Second English Civil Wars
After years of rising tensions, the relationship between the king of England, Charles I, and his English Parliament broke down in armed conflict in 1642, starting the First English Civil War. Charles was also, but separately, king of Scotland. He had gone to war with his Scottish subjects in the Bishops' Wars in 1639 and 1640. These had arisen from the Scots' refusal to accept Charles's attempts to reform the Scottish Kirk to bring it into line with English religious practices. Charles was not successful in these endeavours and the ensuing settlement established the Covenanters' hold on Scottish government, requiring all civil office-holders, parliamentarians and clerics to sign the National Covenant and giving the Scottish Parliament the authority to approve all of the king's councillors in Scotland.
In England, Charles's supporters, the Royalists, were opposed by the combined forces of the English Parliamentarians and the Scots, who in 1643 had formed an alliance bound by the Solemn League and Covenant, in which the English Parliament agreed to reform the English church along similar lines to the Scottish Kirk in return for the Scots' military assistance. After four years of war the Royalists were defeated. With his capital at Oxford under siege, Charles escaped on 27 April 1646, surrendered to the Scots at Southwell on 5 May and was taken to Newcastle, which was in Scottish hands. The Scots and the English Parliament agreed on a peace settlement which they put before the King. Known as the Newcastle Propositions, it would have required all of the King's subjects in Scotland, England and Ireland to sign the Solemn League and Covenant, brought the church in each kingdom into accordance with the Covenant and with Presbyterianism and ceded much of Charles's secular authority as king of England to the English Parliament. The Scots spent some months trying to persuade Charles to agree to these terms, but he refused to do so. Eventually, under pressure from the English to withdraw their forces now the war was over, the Scots handed Charles over to the English parliamentary forces in exchange for a financial settlement and left England on 3 February 1647.
Charles then engaged in separate negotiations with different factions. Presbyterian English Parliamentarians and the Scots wanted him to accept a modified version of the Newcastle Propositions, but in June, Cornet George Joyce of the New Model Army seized Charles, and the army council pressed him to accept the Heads of Proposals, a less demanding set of terms which, crucially, did not require a Presbyterian reformation of the church. He rejected these as well and instead signed an offer known as the Engagement, which had been thrashed out with the Scottish delegation, on 26 December. Charles agreed to confirm the Solemn League and Covenant by act of Parliament in both kingdoms and to accept Presbyterianism in England, but only for a trial period of three years, in return for the Scots' assistance in regaining his throne in England.
When the delegation returned to Edinburgh with the Engagement, the Scots were bitterly divided on whether to accept its terms. Its supporters, who became known as the Engagers, argued that it offered the best chance the Scots would get of acceptance of the Covenant across the three kingdoms and that rejecting it risked pushing Charles to accept the Heads of Proposals. It was opposed by those who believed that to send an army into England on behalf of the King would be to break the Solemn League and Covenant and that it offered no guarantee of a lasting Presbyterian church in England; the Kirk went so far as to issue a declaration on 5 May 1648 that condemned the Engagement as a breach of God's law. After a protracted political struggle, the Engagers gained a majority in the Scottish Parliament, by which time war had again broken out in England between Royalists and Parliamentarians. The Scots sent an army under the command of the Duke of Hamilton into England to fight on behalf of the King in July, but it was heavily defeated at Preston by a force led by Oliver Cromwell. The rout of the Engager army led to further political upheaval in Scotland and the faction opposed to the Engagement was able to regain control of the government, with the assistance of a group of English Parliamentary cavalry led by Cromwell.
Accession of Charles II
Exasperated by the prolonged bloodshed, the New Model Army purged parliament and established the Rump Parliament, which had Charles tried for treason against the English people; he was executed on 30 January 1649, and the republican Commonwealth was created. The Scottish Parliament, which had not been consulted prior to the King's execution, declared his son, also Charles, king of Britain. Before they would permit him to return from exile in the Dutch Republic to take up his crown, they demanded that he first sign both Covenants: recognising the authority of the Kirk in religious matters and that of parliament in civil affairs. Charles II was initially reluctant to accept these conditions, but after Cromwell's campaign in Ireland crushed his Royalist supporters there, he felt compelled to accept the Scottish terms and signed the Treaty of Breda on 1 May 1650. The Scottish Parliament set about rapidly recruiting an army to support the new king and Charles set sail to Scotland, landing on 23 June.
Scotland was actively rearming and the leaders of the English Commonwealth felt threatened. They pressured Thomas Fairfax, lord general of the New Model Army, to launch a preemptive attack. Fairfax accepted the commission to lead the army north to defend against the possibility of a Scottish invasion but was unwilling to strike the first blow against his former allies, believing that England and Scotland were still bound by the Solemn League and Covenant. When a formal order to attack came on 20 June, Fairfax resigned his commission. A parliamentary committee which included Cromwell, his close friend, attempted to dissuade him, pleading with him to change his mind, but Fairfax remained resolute and retired from public life. Cromwell succeeded to his office as lord general, becoming commander-in-chief of the New Model Army; he received his commission on 28 June and set out for Scotland the same day.
Prelude
Once the Treaty of Breda had been signed, the Scottish Parliament started levying men to form a new army, under the command of David Leslie. Their aim was to increase their forces to 36,000 men, but that number was never achieved; by the time Cromwell entered Scotland, crossing the border near Berwick on July 22, Leslie had some 8,000–9,500 infantry and 2,000–3,000 cavalry, although these numbers fluctuated during the course of the campaign. The government instituted a commission to purge the army of anyone suspected of having supported the Engagement, as well as other men considered sinful or undesirable. This was opposed, unsuccessfully, by much of the Scottish nobility and the experienced military leaders, including Leslie. This purge removed many experienced officers and the bulk of the army was composed of raw recruits with little training or experience.
Leslie prepared a defensive line of earthworks between Edinburgh and Leith and employed a scorched earth policy between that line and the invading English army, allowing Cromwell to advance unopposed. Lack of supplies and the hostility of the local people towards the English invaders, forced Cromwell to rely on a seaborne supply chain and he captured the ports of Dunbar and Musselburgh in order to facilitate this. Operations were hampered by persistent bad weather and the adverse conditions and a shortage of food caused much sickness in the English army, substantially reducing its strength.
Cromwell attempted to bring the Scots to battle at Edinburgh. He advanced on Leslie's lines on 29 July, capturing Arthur's Seat and bombarding Leith from Salisbury Crags. Cromwell was not able to draw Leslie out and the English retired for the night to Musselburgh; their rest was disturbed by a party of Scottish cavalry raiding their camp in the early hours. Cromwell's attack coincided with a visit by Charles II to the Scottish army, where he was warmly received. Members of the Covenanter government, concerned that their Godly war would be corrupted by feelings of personal loyalty to the King, asked Charles II to leave. They then ordered a new purge, which was quickly enacted in early August, removing 80 officers and 4,000 of Leslie's men, damaging morale as well as weakening the army's strength.
Throughout August Cromwell continued to try to draw the Scots out from their defences so as to enable a set piece battle. Leslie resisted, ignoring pressure from the secular and religious Scottish hierarchy to attack Cromwell's weakened army; he reasoned that the persistent bad weather, the difficult English supply situation and the dysentery and fever that had broken out in the English camp would force Cromwell to withdraw back into England before winter set in.
On 31 August Cromwell did withdraw; the English army reached Dunbar on 1 September, having taken two days to march the 17 miles (27 km) from Musselburgh, harassed day and night by the pursuing Scots. The road was left littered with abandoned equipment and the men arrived, according to one of their officers, Captain John Hodgson, as a "poor, shattered, hungry, discouraged army". The Scottish army outflanked the English, blocking the road to Berwick and England at the easily defended Cockburnspath Defile. Their main force encamped on the 177-metre-high (581 ft) Doon Hill, two miles (3.2 km) south of Dunbar, where it overlooked the town and the coastal road running south west from the town. The hill was all but invulnerable to direct assault. The English army had lost its freedom of manoeuvre, although they could supply themselves by sea and, if needs be, evacuate the army the same way. On 2 September Cromwell surveyed the situation and wrote to the governor of Newcastle warning him to prepare for a possible Scottish invasion:
We are here upon an engagement very difficult. The enemy hath blocked up our way at the pass at Copperspath, through which we cannot get without almost a miracle. He lieth so upon the hills that we know not how to come that way without great difficulty; and our lying here daily consumeth our men who fall sick beyond imagination.
Opposing forces
Infantry
Infantry formations, equipment and tactics were similar in both armies, although the basic formation of the regiment varied greatly in size. An infantry regiment was composed of both musketeers and pikemen. The musketeers were armed with muskets possessing 4-foot-long (1.2 m) barrels and, mostly, matchlock firing mechanisms. These relied on the glowing end of a length of slow match, thin cord soaked in saltpetre, igniting the weapon's priming powder when the trigger was pulled. These were reliable and robust weapons, but their effectiveness was severely reduced in poor weather. In addition, keeping the slow match burning at all times resulted in the consumption of a vast amount, while dowsing it rendered the musket useless. Balancing combat readiness against logistical capability called for fine judgement from a regiment's officers. A small number of musketeers on each side were equipped with the more reliable flintlock muskets, known at the time as firelocks. In 1650 musketeer tactics were in the middle of a transition from firing one rank at a time so as to maintain a steady fire, to the entire unit discharging a volley simultaneously for shock effect.