Although the Irish Republican Brotherhood condemned the Clerkenwell Outrage as a "dreadful and deplorable event", the organisation returned to bombings in Britain in 1881 to 1885, with the Fenian dynamite campaign, beginning one of the first modern terror campaigns. Instead of earlier forms of terrorism based on political assassination, this campaign used modern, timed explosives with the express aim of sowing fear in the very heart of metropolitan Britain, in order to achieve political gains. (Prime minister William Ewart Gladstone was partly influenced to disestablish the Anglican Church in Ireland as a gesture by the Clerkenwell bombing.) The campaign also took advantage of the greater global integration of the times, and the bombing was largely funded and organised by the Fenian Brotherhood in the United States.