Oliver Cromwell (1599-1658) was one of the greatest leaders ever to rule England. He was a dedicated Puritan, deeply and fervently devoted to carrying out the will of God. He was relentless in battle, brilliant in organization and had a genius for cavalry warfare. With a Psalm on his lips and a sword in his hand he led his Ironsides to victory after victory, first against the Royalists in England, then against the Catholics of Ireland, and finally against the rebellious Scots.
Oliver Cromwell pursued religious toleration which helped to stabilize the fragile country after the King was executed. His foreign policy in support of beleaguered Protestants in Europe and against Muslim pirates in the Mediterranean was successful and he restored the supremacy of the seas to England.