The early military history of Ceres has been mentioned. The result of Sir William Keith's instruction in archery bore fruit when he led the men of Ceres to the Field of Bannockburn. Over and above the holding of the Games, In commemoration of the aid and valour by and of the Ceres contingent, a Memorial was unveiled in 1914 beside the green by the Earl of Crawford and Balcarres in honour of those who struck a decisive blow for the freedom of Scotland in 1314.

In that year, marking the 600th anniversary of Bannockburn, the call came again to the men of Ceres to fight once more for freedom in the War of 1914-1918. In the Boer War a hundred and twenty men from Ceres Parish were among those trained by Colonel Sir John Gilmour of Montrave and 4 of these were included In the first draft of the "Fife and Forfar Light Horse" regiment sent out from Cupar; this regiment being amongst the last of the mounted volunteers. When War came again in 1914, the men of Ceres once more responded to the call. The women also
gave their services. The Holiday Home became a Red Cross Hospital staffed by Members of the Local Voluntary Aid Detachment. A work-party met regularly and there was a large camp at Rumgally, a mile or two from Ceres. The Second World War of 1939-1945 saw most of the young men in the Parish called to serve with the Army, Navy and Air Force, while many young women joined the Women's Branches of the Services. During the War, a succession of English, Canadian, Polish and other troops were billeted in the village halls, in some private houses and in a camp at Baltilly.

The Roll of Honours is a large one for a rural parish. There are 2 Brass Tablets In the Parish Church vestibule, one for each War and also a Roll of Honour in the Village Hall which was restored as the Village War Memorial after the First World War.