What drove an Irish American army to attack Canada five times after the end of the Civil War?

Was this some whiskey-fueled daydream or a serious military operation?

How did this band of revolutionaries change history forever?

David Rumsey Map Collection, www.davidrumsey.com

About Christopher

Christopher Klein is an author and freelance writer specializing in history. He writes stories about the past that inform us about the present and guide us to the future. A frequent contributor to History.com, he is the author of four books including When the Irish Invaded Canada.

About When the Irish Invaded Canada

When the Irish Invaded Canada is the outlandish, untold story of the Irish American revolutionaries who undertook one of the most fantastical missions in military history—to hold the British province of Canada hostage and ransom it for Ireland’s independence.

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"Klein has burrowed deep into the historical record and his vivid, engrossing storytelling brings to life the raids as well as the eccentric characters behind them."

The Irish Times

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Shortly after noon on August 26, 1961, Hollis Watkins and Curtis Elmer Hayes filled two vacant stools at the Woolworth’s lunch counter in McComb, Mississippi. When the two African American students were refused service at the…