The Cromwell Museum in Huntingdon, run by Cambridgeshire County Council, will be hosting the event in conjunction with the Cromwell Association. It's also supported by the Huntingdon Freemen's Trust. The day itself will be held in Huntingdon Library - a short walk from the museum.
The day will include a series of talks from leading experts on subjects as diverse as the importance of archaeology in understanding civil war battles, and what happened when Cromwell's army was disbanded.
John Goldsmith, Cambridgeshire County Council's Curator of the Cromwell Museum said "Oliver Cromwell rose to fame and power as a consequence of his abilities as a military commander. This fascinating programme will really give us a chance to explore aspects of his army in detail, and we'd encourage those interested to book early to avoid disappointment."
The event is open to all and places must be booked in advance by 12 October. The cost of the day, including buffet lunch to be served in Huntingdon's Town Hall, is Â£45 with reductions for full-time students.
For more details contact the Museum or go to www.cambridgeshire.gov.uk/cromwell/events