National Union of Mineworkers

labor union, United Kingdom

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July 16, 2026

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The National Union of Mineworkers (NUM) was a prominent labor union in the United Kingdom. It represented coal miners and played a significant role in the country's industrial history. The NUM was instrumental in advocating for better wages, improved working conditions, and a shorter workweek for its members.

Following World War II, the British Labour Party nationalized the coal mines, creating the National Coal Board (NCB) in 1947. The NUM initially supported these changes, which aimed to increase production and improve miners' lives. However, during the 1980s, under Prime Minister Margaret Thatcher, the NCB began closing unprofitable mines and laying off workers, leading to significant industrial disputes, most notably the 1984-85 miners' strike. This period marked a decline in the NUM's membership and influence as the coal industry contracted.1

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United Kingdom
Economy and society
…won a struggle with the National Union of Mineworkers (NUM), who staged a nationwide strike to prevent the closure of 20 coal mines that the government claimed were unproductive. The walkout, which lasted nearly a year and was accompanied by continuing violence, soon became emblematic of the struggle for power…
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…won a struggle with the National Union of Mineworkers (NUM), who staged a nationwide strike to prevent the closure of 20 coal mines that the government claimed were unproductive. The walkout, which lasted nearly a year and was accompanied by continuing violence, soon became emblematic of the struggle for power…
Read More