Soldiers from the  Ministry of Defence's (MoD) Kineton Station, accompanied by a band, marched from Warwick Castle to Pageant Gardens in the town.
Kineton Station has a permanent staff of more than 200 military personnel.
The parade was followed by an open day at Marlborough Barracks, Southam.
Soldiers have taken part in a parade to celebrate the 75th anniversary of an ammunition depot.