Irish Fenian invasion of Canada - June 1, 1866
The plan was for a three-pronged invasion, with a goal of capturing Quebec and making it the seat of the Irish Republic-in-exile. On June 1, 1866, the Irish Fenian raid of Canada launched. A three-pronged invasion with the goal of capturing Quebec and making it the seat of the Irish Republic-in-exile.
Source: irishcentral.com