The National Peacekeepers' Day Plaque was unveiled on August 24, 2018. It was erected by the Canadian Association of Veterans in United National Peacekeeping Niagara Chapter with the support by the City of Thorold, Canadian Corps Unit 44, Royal Canadian Legion Br 17, local commercial and private sponsors.
In late 1973, Canadian Forces took part in the Second United Nations Emergency Force, to supervise the ceasefire between Egyptian and Israeli forces. Included in Canada's commitment to the mission were two Canadian Forces Buffalo aircrafts and crew. The unit was stationed in Ismailia, Egypt, a small city next to the Suez Canal.
The single highest loss of Canadian lives since Canada began to participate in international peace missions involved their presence in Syria. Nine Canadian Armed Forces members with the United Nations peace mission in Egypt were killed on August 9, 1974, when their Buffalo aircraft 115461 was shot down in a Syrian missile attack while making a routine supply run to the mission in the Golan Heights. For this reason, August 9 has been declared National Peacekeepers' Day in Canada.