The English Civil War or Great Rebellion was a series of civil wars and political machinations between Royalists and Parliamentarians in the Kingdom of England from 1642 to 1651. Part of the wider 1639 to 1653 Wars of the Three Kingdoms, the struggle consisted of the First English Civil War and the Second English Civil War. The Anglo-Scottish war of 1650 to 1652 is sometimes referred to as the Third English Civil War.

While the conflicts in the three kingdoms of England, Scotland and Ireland had similarities, each had its own specific issues and objectives. The First English Civil War was fought primarily over the correct balance of power between Parliament and Charles I. It ended in June 1646 with Royalist defeat and the king in custody.

However, victory exposed Parliamentarian divisions over the nature of the political settlement. The vast majority went to war in 1642 to assert Parliament's right to participate in government, not abolish the monarchy, which meant Charles' refusal to make concessions led to a stalemate. Concern over the political influence of radicals within the New Model Army like Oliver Cromwell led to an alliance between moderate Parliamentarians and Royalists, supported by the Covenanter Scots. Royalist defeat in the 1648 Second English Civil War resulted in the execution of Charles I in January 1649, and the establishment of the Commonwealth of England.

English Civil War
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In 1650, Charles II was crowned King of Scotland, in return for agreeing to create a Presbyterian church in both England and Scotland. The subsequent Anglo-Scottish war ended with Parliamentarian victory at Worcester on 3 September 1651. Both Ireland and Scotland were incorporated into the Commonwealth, and the British Isles became a unitary state. This arrangement ultimately proved both unpopular and unviable in the long term, and was dissolved upon the Stuart Restoration in 1660. The outcome of the civil wars effectively set England and Scotland on course towards a parliamentary monarchy form of government.

Terminology

The term English Civil War appears most often in the singular, but historians often divide the conflict into two or three separate wars. These were not restricted to England alone, as Wales (having been annexed into the Kingdom of England) was affected by the same political instabilities. The conflicts also involved wars with Scotland and Ireland and civil wars within them. Some historians have favoured the term The British Civil Wars. From the Restoration to the 19th century, the common phrase for the civil wars was "the rebellion" or "the great rebellion".