War in the Vendée was not until the social unrest and the fear of The Terror (a period between 1793–94 where tens of thousands of people were beheaded by use of guillotine) combined with the external pressures from the Civil Constitution of the Clergy (1790) and the introduction of a levy of 300,000 on the whole of France, decreed by the National Convention in February 1793, that the region erupted. The Civil Constitution of the Clergy required all clerics to swear allegiance to it and, by extension, to the increasingly anti-clerical National Constituent Assembly. All but seven of the 160 bishops refused the oath,
Reign of Terror (Sleigh Bells album) video was directed by Gregory Kohn and instrumentalist Derek Miller, and features live footage of Sleigh Bells performing in various cities that was inspired by Pantera music videos. The video includes footage from the band’s concerts in Omaha, Oklahoma City, Dallas and Houston. A remix of "Demons" by the band’s tourmate Diplo was released the same day. In August 2012, a music video co-directed by Kohn and Miller for "End of the Line" was released. Leading up to "Reign of Terror"'s release date, Sleigh Bells went on an eight-day mini-tour of Florida with the DJ Diplo and the black metal