It is estimated that no less than 20,000 British North Americans, and possibly as many as 50,000 served in the US Army during the Civil War. No sooner had the war drawn to a close than a new threat materialised south of the border: The Fenian Brotherhood, the American branch of the Irish Republican Army. The Brotherhood's primary goal was Irish independence; this they would attempt to achieve by an invasion of Canada. This fine text by David Ross and Grant Tyler examines the Canadian campaigns 1860-70, illustrated by numerous photographs and eight full page colour plates by Rick Scollins.