Calendar of Events 2025 MAY Marengo WWII Days May 31 – June 1 JUNE WWII Days at Old Falls Village – Menomonee Falls, WI – June 14 – 15 AUGUST D-Day Ohio – Conneaut, OH – August 14 – 16 SEPTEMBER Military History Weekend – Lockport, IL – September 13 – 14 World War Two Days – Rockford IL – September 27 – 28