It is perhaps only a slight exaggeration to say that the English Civil War was fought over the issue of images, and not just the question of statues and other material symbols in religious ritual but less tangible matters such as the 'idol' of monarchy and, beyond that, "the idols of the mind" that Reformation thinkers sought to purge in themselves and others.
Mitchell/ Iconology/ 7
AlJazeera The Image War
War images / Iraq
Christopher Hill Milton & the English Revolution