One thousand eight hundred Fenian raiders are repelled back to the United States after looting and plundering the Saint-Armand and Frelighsburg areas of Canada East.

The Fenian raids were a series of incursions carried out by the Fenian Brotherhood, an Irish republican organization based in the United States, on military fortifications, customs posts and other targets in Canada in 1866, and again from 1870 to 1871. A number of separate incursions by the Fenian Brotherhood into Canada were undertaken to bring pressure on the British government to withdraw from Ireland, although none of these raids achieved their aims.

Saint-Armand is a municipality in the Canadian province of Quebec, located within the Brome-Missisquoi Regional County Municipality and the Eastern Townships. The population as of the Canada 2011 Census was 1,248. It is located on the Canada–United States border.

Frelighsburg is a municipality in the Estrie region of southern Quebec, Canada, on the border with Vermont. It is at the foot of Mount Pinnacle, part of the Appalachian Mountains.

Canada East was the northeastern portion of the Province of Canada. Lord Durham's Report investigating the causes of the Upper and Lower Canada Rebellions recommended merging those two colonies. The new colony, known as the Province of Canada, was created by the Act of Union 1840 passed by the Parliament of the United Kingdom, having effect in 1841. For administrative purposes, the new Province was subdivided into Canada West and Canada East. The former name of "Lower Canada" came back into official use in 1849, and as of Canadian Confederation of 1867 it formed the newly created province of Quebec.