A politically motivated provocative act of violence (the deed), meant to broadcast an ideological message (the propaganda), be exemplary to others, trigger anarchy, incite a response from authorities, and serve as catalyst to ignite a spirit of socialist revolution among the proletariat against perceived oppressors, to advance the ideology of anarchism. Or more broadly, the theoretical principle of using such violent revolutionary tactics in the struggle to achieve radical left-wing political goals; a contentious idea most prominently debated among leftists who advocate anarcho-communism and libertarian socialism.