In 1639, and again in 1640,
Charles I, who was king of both Scotland and England in a
personal union, went to war with his Scottish subjects in the
Bishops' Wars. 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 required all civil office-holders, parliamentarians and clerics to sign the
National Covenant and give the
Scottish Parliament the authority to approve all the king's councillors in Scotland. After years of rising tensions the relationship between Charles and his
English Parliament broke down, starting the
First English Civil War in 1642. In England Charles's supporters, the
Royalists, were opposed by the combined forces of the
Parliamentarians and the Scots. After four years of war the Royalists were defeated and Charles surrendered to the Scots. After nine months of fruitless negotiations with Charles the Scots handed him 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. In December 1647 he reached an agreement with the Scots, known as the
Engagement, on religious matters, in return for their assistance in enforcing his claim to the English throne. The Engagement bitterly divided the Scots. The Kirk went so far as to issue a declaration condemning it as a breach of God's law. After a protracted political struggle the Engagers gained a majority in the Scottish Parliament and on 11 April 1648 repudiated the 1643 treaty with the Parliamentarians.
War In 1648 the coalition of interests which had cohered on the Parliamentarian side during the first war fractured. There were risings in support of the Royalist cause in England and Wales and mutinies by Parliamentarian garrisons. These were especially serious in
Kent,
Essex and
South Wales and marked the start of the
Second English Civil War. On 29 April 1648 sixteen English Royalists seized the border town of
Carlisle. By 1 May they had grown to a strength of 150 and had sent out patrols as far as
Appleby. Six English warships defected to the Royalists. The most reliable military force the Parliamentarian leaders had at their disposal was the
New Model Army. This was a
standing army formed in 1645 by the
Parliamentarians with an establishment of 22,000. It was a permanent and fully professional force, and commanded by Sir
Thomas Fairfax it gained a formidable reputation during the last two years of the
First English Civil War. It had been split into garrisons across the country. Fairfax, based in London, put down the revolt in Kent on 1 June at the fiercely fought
Battle of Maidstone. He then moved into Essex and began an eleven-week siege of
Colchester. In South Wales the Parliamentarians faced mutinous garrisons in
Chepstow,
Tenby and
Pembroke Castle as well as Royalist risings.
Lieutenant General Oliver Cromwell arrived in South Wales on 11 May with 5,000 men of the New Model Army and found the local Parliamentarian forces gaining control. He besieged
Pembroke Castle in the far south west on 31 May, hampered by a lack of artillery.
Major General John Lambert was in charge of Parliamentarian forces in the north of England. By mid-June he could muster fewer than 3,000 men; 1,700 from the
Northern Association Army and 1,300 Lancashire
militia.
Marmaduke Langdale, who had fought as a cavalry commander in the First Civil War, raised 4,200 English Royalists in northern England.
Pontefract Castle also went over to the Royalists, although the size of its garrison is uncertain. Lambert's men harassed the Royalist force around Carlisle, gathered information and besieged Pontefract Castle from early June. The summer of 1648 was extremely wet and stormy, causing both sides to be hampered by the weather. The Scots raised an army under the command of the
Duke of Hamilton to send into England to fight on behalf of Charles. As the situation with regards to the
siege of Pembroke Castle and the restiveness of the local populace improved, Cromwell despatched regiments one at a time to march north and reinforce Lambert. Siege guns arrived on 1 July and the castle surrendered on the 11th. Cromwell mopped up and was marching east with more than 4,000 men within a week. ==Invasion==