"One of the Few Successful Irish Campaigns Against the British in Irish Republican History"

"During the Great Starvation of the 1840s, more than one million Irish emigrated from Ireland to America. These immigrants proved to be invaluable resources to the Union during the Civil War. And after the war, there were enough of them that only a foolhardy politician would ignore the causes held dear by such a large constituency.
"In this environment, the American branch of the Fenian movement thrived. Founded primarily to raise funds and obtain weaponry to send back to Ireland for a military rebellion against the English occupiers, the American Fenian organizers adopted a new strategy at the close of the Civil War. They would take the fight for Irish freedom to British Canada."

Dan Murphy at Irish Central recalls the 1866 "Irish Fenian invasion of Canada."