Forest's other regional rival is Sheffield United, based in the neighbouring county of South Yorkshire, a rivalry which has roots in britain miners' strike of 1984–85 if the miners of South Yorkshire walked out on long strikes but some Nottinghamshire miners, who insisted on Keeping a ballot, continued to operate. https://dominickyehkl.humor-blog.com/37323933/how-many-champions-league-titles-does-nottingham-forest-have-an-overview