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.

Also By Christopher Klein

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FEB 21, 2019

The Lawless Border With Canada Was Once America's Main Security Concern


Through much of its history, the United States has had a border problem—with Canada. Although peaceful neighbors today, the United States and Canada long had a contentious relationship.

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When the Irish Invaded Canada
On Sale March 12, 2019!

“Thoroughly researched and engagingly written… A well-presented, little-known sidebar to the struggle for Irish independence.”

—Kirkus Reviews

Latest History Blog Post

New Fenian Raids Book

February 22, 2019

The Fenian Raids were a seminal moment in Canadian history, but a mere footnote in the United States. I’m hoping my new book on the Fenian Raids, When the Irish Invaded Canada, will make more…