The Irish Republican Brotherhood (IRB) and Fenian Brotherhood were set up in Ireland and the United States, respectively, in 1858 by militant republicans, including Young Irelanders. The latter dissolved into factions after organising unsuccessful raids on Canada by Irish veterans of the American Civil War, and the IRB launched Clan na Gael as a replacement. In Ireland itself, the IRB tried an armed revolt in 1867 but, as it was heavily infiltrated by police informers, the rising was a failure.