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 once the miners of South Yorkshire walked out on extensive strikes but some Nottinghamshire miners, who insisted on holding a ballot, continued to work. https://deanvtmjc.blogdal.com/39190230/the-best-side-of-how-many-champions-league-titles-does-nottingham-forest-have