The New Model Army was raised partly from among veteran soldiers who already had deeply held Puritan religious beliefs, and partly from conscripts who brought with them many commonly held beliefs about religion or society. Many of its common soldiers therefore held dissenting or radical views unique among English armies. Although the Army's senior officers did not share many of their soldiers' political opinions, their independence from Parliament led to the Army's willingness to contribute to the overthrow of both the Crown and Parliament's authority, and to establish a Commonwealth of England from 1649 to 1660, which included a period of direct military rule. Ultimately, the Army's Generals (particularly Oliver Cromwell) could rely both on the Army's internal discipline and its religious zeal and innate support for the "Good Old Cause" to maintain an essentially dictatorial rule.