Fenians Invade Canada: Irish Raiders Cross the Niagara

Irish-American veterans of the Civil War loaded their rifles, crossed the Niagara River into Canada, and declared war on the British Empire. On May 31, 1866, approximately 850 Fenian raiders under Colonel John O'Neill launched an invasion of Canada from Buffalo, New York, in one of the most audacious and improbable military operations of the nineteenth century. The Fenian Brotherhood was an Irish-American organization dedicated to freeing Ireland from British rule. Their strategy for accomplishing this from North America was creative, if desperate: invade British Canada, seize territory, and use it as leverage to force Britain to negotiate Irish independence. Many of the raiders were combat-hardened Union Army veterans who knew how to fight and had nothing to lose. O'Neill's force crossed the Niagara River overnight and established a position at the village of Fort Erie. On June 2, they engaged Canadian militia at the Battle of Ridgeway, defeating a force of roughly 900 inexperienced volunteers in a sharp fight that killed nine Canadians and wounded thirty more. The Fenians suffered similar casualties. The victory at Ridgeway was the high-water mark. O'Neill had expected reinforcements and supplies from other Fenian columns that never materialized. The U.S. government, which had tacitly tolerated Fenian organizing, sent a gunboat to cut off the raiders' retreat. O'Neill pulled his men back across the river, where they were arrested by U.S. authorities and quickly released. Further Fenian raids followed in 1870 and 1871, equally unsuccessful. But the political impact was substantial. The raids terrified Canadians and demonstrated that the collection of British colonies in North America was vulnerable without unified defense. The threat of further Fenian incursions accelerated the Confederation movement, and on July 1, 1867, the Dominion of Canada was born, partly because Irish-American revolutionaries had demonstrated that the existing colonial arrangement could not protect itself. The Fenians failed to free Ireland. They accidentally helped create Canada.