Author Christopher Klein talked about his book When the Irish Invaded Canada: The Incredible True Story of the Civil War Veterans Who Fought for Ireland's Freedom. "Just over a year after Robert E. Lee relinquished his sword, a band of Union and Confederate veterans dusted off their guns. But these former foes had no intention of reigniting the Civil War. Instead they fought side by side to undertake one of the most fantastical missions in military history: to seize the British province of Canada and hold it hostage until the independence of Ireland was secured."