The early appearance of Protestantism further worsened internal unity in the anarchical country. Disputes between political factions resulted in an unstable, almost anarchical, regency. The Moroccans invaded the western Sahel adding to an anarchical situation. Realist scholars emphasized the anarchical nature of international politics and the need for state survival. "Der Spiegel" labeled these films the "most sympathetic and anarchical subgenre of exploitation film". Administrators, developers, and moderators on HackThisSite are arranged in a democratic but highly anarchical fashion. In 1977, Bull published his main work, "The Anarchical Society".