What eleven parts was England divided into by Oliver Cromwell?

Oliver Cromwell divided England into eleven administrative regions known as "military districts" during the period of the Commonwealth. These divisions were established primarily for military governance and efficiency, reflecting Cromwell's focus on maintaining control after the English Civil War. Each district was overseen by a major-general, who had authority over both civil and military matters. This system aimed to strengthen the central government's power and suppress potential royalist uprisings.