1642 CE - 1651 CE: The English Civil Wars between Parliamentarians ('Roundheads') and Royalists ('Cavaliers').

1642 CE - 1646 CE: The First English Civil War.

1645 CE: The English Parliament motions to form a new professional fighting force, the New Model Army.

1645 CE: Sir Thomas Fairfax is appointed the commander of the New Model Army during the English Civil Wars.

1645 CE: The Self-Denying Ordinance forbids any member of Parliament from also being a military commander in the New Model Army.

1645 CE: The Parliamentarians led by Sir Thomas Fairfax defeat the Royalists at the Battle of Naseby during the English Civil Wars.

1645 CE: The Parliamentarians led by Sir Thomas Fairfax defeat a Royalist army led by Lord Goring near Langport in Somerset.

1645 CE: The Parliamentarians led by Sir Thomas Fairfax beseige and capture Bristol after the surrender by Prince Rupert.

1648 CE: The Second English Civil War when a Scottish army attempts and fails to restore Charles I of England.

1648 CE: At the Battle of Maidstone, Sir Thomas Fairfax leads the Parliamentairans to victory against a Royalist army led by the Earl of Norwich.

1648 CE: A Parliamentarian army led by Oliver Cromwell defeats an Anglo-Scottish Royalist army at the Battle of Preston.

1648 CE: Sir Thomas Fairfax leads the Parliamentarian siege which captures Colchester.

1648 CE: The New Model Army marches on Parliament to apprehend Presbyterian MPs and receive the arrears in their pay.

1650 CE: Oliver Cromwell leads the New Model Army to ruthlessly quash a major rebellion in Ireland.

1650 CE: Sir Thomas Fairfax resigns as commander of the Parliamentarian New Model Army, refusing to lead them against Scotland.

1650 CE: Oliver Cromwell leads the New Model Army to victory against a Socttish army at Dunbar.

1651 CE: Oliver Cromwell leads the New Model Army to victory against an invading Scottish army at Worcester.

1658 CE: The Battle of the Dunes where Oliver Cromwell sends the New Model Army to aid the French in attacking the Spanish Netherlands. Dunkirk is acquired as a result of victory.