Steffen Kailitz notes that "the difference between the autonomist scene and terrorist networks gradually lost importance from the 1990s" and that a number of antifa groups were involved in violent activities from the 1990s. In October 2016, antifa in Dresden campaigned on the occasion of the anniversary of the reunification of Germany on 3 October for "turning Unity celebrations into a disaster" to protest this display of new German nationalism whilst explicitly not ruling out the use of violence. Antifa protesters were involved during the 2017 G20 Hamburg summit confrontations.