Which of the following wars lasted the longest?

Among the wars listed, the one that lasted the longest was the English Civil War, also called Great Rebellion. It was a war that ran from August 22, 1642 – September 3, 1651. Fighting that took place in the British Isles between supporters of the monarchy of Charles I, and his son and successor, Charles II, and opposing groups in each of Charles’s kingdoms, including Parliamentarians in England, Covenanters in Scotland, and Confederates in Ireland.

The English Civil War was considered to have begun in England when Charles I raised an army against the wishes of Parliament, to deal with an active rebellion in Ireland. The period of conflict actually began earlier in Scotland, with the Bishops’ Wars of 1639–40, and in Ireland, with the Ulster Rebellion of 1641.

Throughout all of the 1640s, war between the King and Parliament ravaged in England. It hit all parts of the kingdom held by the House of Stuart. There was all out civil war within each of the Stuart states. War in all its forms took place between the various British and Irish dominions. For this reason the English Civil War might properly be called the British Civil Wars or the Wars of the Three Kingdoms. The war finally ended in 1651 with the flight of Charles II to France and, with him, the hopes of the British monarchy.

From April 1861 – April 1865, the American Civil War took place. The Greek Civil War ran from December 1944 – August 1949. The Algerian War was fought from November 1954 – March 1962.