He was able to raise an army in his own country in doing this he maintained a series of victories. At the beginning of the war he was named captain of horse which was basically a lower rank in the military. He ultimately led his Calvary in some of the most vital battles that were to take place in the Civil War. Oliver was a supporter of the agitators in the conflict between the army and parliament in 1647. When the second war broke out in 1648; Cromwell crushed a royalist uprising happening in South Wales. The execution of Charles I took place in January 1649. Cromwell had established himself in the military and ended up having a great impact on it. This in turn made him become a very powerful political figure. This landed him the position of first chairmen of the New Council of State.
During the end of his life Cromwell had become somewhat bitter has to the flip flopping he had done. September 3, 1658 Oliver Cromwell did end was buried at Westminster Abbey. About two years later in 1660 he was exhumed from his grave and hung in his shroud at Tyburn. They cut off his head and displayed outside of Westminster hall. It eventually was recused by someone around 20 years later. He was succeeded by his son