What happened
Cabinet papers released in 2014 revealed that the Thatcher government had been preparing for the miners' strike for years before it happened. Coal stocks were built up, power stations stockpiled fuel, and plans were made to police the picket lines with militarised force.
The closure of the pits was not purely economic — some pits were profitable. The ideological goal was to destroy the NUM, the most powerful union in Britain, and use that victory to break organised labour as a political force. It worked: trade union membership fell from 13 million in 1979 to 7.3 million by 1992.
The human cost was generational. Former mining towns in South Yorkshire, County Durham, and South Wales experienced mass unemployment that persisted for decades. Life expectancy in these areas remains significantly below the national average. The government rejected proposals for managed industrial transition, rehabilitation funds, or retraining programmes.