trade unions and he miners strikes

Why Thatcher Targeted the Unions

• Part of wider economic project: reduce socialist institutions, promote individualism + popular capitalism.

• Economic restructuring: shift from heavy industry → financial services made conflict with unions inevitable.

• Personal/political memory: Heath government fell partly due to 1974 miners’ strike → Thatcher determined not to repeat his mistakes.

• Ideological belief: unions bullied workers, forced unwanted strikes, and challenged democratic government authority.

Step‑by‑Step Legislative Weakening of Union Power

Thatcher avoided direct confrontation until unions were legally weakened.

• Employment Act 1980

  • Ended closed shop (workers no longer forced to join a union).

  • Banned secondary action (sympathy strikes).

• Employment Act 1982

  • Unions could be sued for illegal strike action → major deterrent.

• Trade Union Act 1984

  • Required secret ballots before strikes → reduced militant/wildcat action.

  • Simultaneously: government built up coal reserves to survive a miners’ strike without a three‑day week.

Effect: unions lost legal protections, organisational strength, and the ability to coordinate national action.

The Miners’ Strike (1984–85): A Case Study in Division

• One of the most divisive conflicts of the Thatcher era.

• Even some Conservatives believed Thatcher went too far.

• Peregrine Worsthorne captured the shift:

  • Old Tories denied class war;

  • New Thatcherites embraced it — “we are class warriors”.

Long‑Term Causes of the Conflict

• NUM historically powerful; had brought down Heath in 1974.

• Thatcher wanted to prove government, not unions, ruled Britain.

• Winter of Discontent (1978–79) turned public opinion against unions → gave Thatcher political cover.

• Ridley Plan (1978) set out strategy to defeat NUM:

  • Ban secondary action.

  • Develop alternative energy sources (gas, nuclear).

  • Build up coal stocks to prevent being “held to ransom”.

Short‑Term Causes

• Coal industry nationalised (1946) → government controlled British Coal Corporation.

• Thatcher appointed Ian MacGregor to reform the industry → reduce subsidies → close unprofitable pits.

• Pit closures threatened entire mining communities (Wales, Scotland, North of England).

• Arthur Scargill (NUM president from 1981): militant, determined to fight closures; had led 1974 victory over Heath.

• MacGregor announced closure of 20 pits; Scargill claimed real plan was 70 (later confirmed by Cabinet papers).

• Scargill called a strike.

The Ballot Issue (Fatal Weakness)

• 1984 Trade Union Act required secret ballots before strikes.

• Scargill refused to hold one (feared miners in safe pits would vote against).

• Result: strike lacked legal legitimacy → weakened public support + strengthened government position.

The Strike Itself

• Began March 1984.

• NUM pickets targeted working pits; NACODS refused to strike → deep resentment.

• Government response:

  • Confiscated NUM funds (strike illegal).

  • Used MI5 to infiltrate NUM and anticipate strategy.

  • Deployed tens of thousands of police to mining areas.

• Police presence often escalated tensions; miners saw them as an “army of occupation”.

The Battle of Orgreave (18 June 1984)

• 5,000 miners vs 5,000 police at Orgreave coking plant.

• Police used mounted charges; miners threw stones/bricks.

• Over 100 injured; dozens arrested.

• Thatcher used the violence to frame miners as “the rule of the mob” threatening democracy.

Significance

• NUM defeated → collapse of union power.

• Marked a decisive shift away from collectivism and towards Thatcherite individualism.

• Deepened class, regional, and community divisions.

• Cemented Thatcher’s authority and reshaped British politics.