This seventh volume of Cannon in Canada is an informative and detailed synopsis of the carefully preserved and restored guns and artillery on display in the province of Ontario. The Royal Regiment of Canadian Artillery is represented by a long and distinguished line of gunners with historical ties back to the days before Canada's Confederation. The honour of defending Canada while standing ready to support operations overseas in peace and war continues to this day. It is necessary to remember that the weapons of war are an integral part of what keeps this nation safe. This book describes the Canadian artillery found in Ontario and the places of honour where they can be viewed. These monuments highlight the importance of this essential military hardware that brought our nation forward at key turning points in history when our guns were in use as tools of war at home and overseas.