Evaluate the competing explanations for the end of the Cold War, weighing internal decline, agency, and external pressure

What this dot point is asking

SEAB wants you to evaluate the competing explanations for the end of the Cold War, weighing internal Soviet decline, individual agency, and external pressure. This is an explicitly historiographical dot point: the task is not to narrate the end but to assess how historians explain it and to build a ranked, balanced judgement. A strong answer treats the three explanations as complementary rather than mutually exclusive, distinguishes underlying from proximate causes, and ranks them clearly.

The answer

Explanation one: internal decline

The first explanation locates the cause inside the Soviet system. On this reading, the Cold War ended because the Soviet Union could no longer afford to wage it. The centrally planned economy was stagnating, falling further behind the West, and unable to sustain both its military commitments and its people's living standards. The system's legitimacy was eroding, its empire was a drain rather than an asset, and the costs of competition had become unbearable. This explanation treats the end of the Cold War as the consequence of a fundamentally unsustainable system reaching the limits of its viability, so that retreat and reform were ultimately forced regardless of who led.

Explanation two: individual agency

The second explanation stresses the decisions of individuals, above all Gorbachev. On this reading, decline created pressure but did not dictate the response; a different leader might have met the crisis with repression and retrenchment rather than reform. Gorbachev's specific choices, his new thinking that rejected inevitable conflict, his pursuit of arms reductions, and crucially his renunciation of force in Eastern Europe, determined that the Cold War ended when it did and that it ended peacefully. This explanation foregrounds contingency and choice: the end of the Cold War was not inevitable in its timing or its peaceful character, and human agency was decisive.

Explanation three: external pressure

The third explanation credits Western, especially American, pressure. On this reading, the renewed confrontation of the early 1980s, the Reagan military build-up and the Strategic Defense Initiative, raised the cost of the arms race for an already strained Soviet economy and helped force the Soviet leadership toward reform and accommodation. In its strongest, triumphalist form this explanation holds that Western strength won the Cold War. In a more moderate form it treats external pressure as one contributing factor that sharpened a crisis whose roots lay elsewhere.

How the explanations interact

The explanations are not really rivals so much as causes operating at different levels. Internal decline is best understood as the underlying, necessary condition: without it there would have been no crisis to resolve. Agency is the proximate cause that determined the actual outcome: Gorbachev's choices turned a structural crisis into a peaceful end at a particular moment. External pressure is a contributing factor that accelerated and sharpened the crisis without being fundamental. Seen this way, the question is less which explanation is correct than how to rank and combine them.

Building a judgement

The strongest judgement ranks the factors and explains their relationship. Internal decline was fundamental, because it created the unsustainable situation that demanded change. Agency was decisive in form and timing, because Gorbachev's choices determined that the change took the shape of a peaceful end rather than a violent crackdown or a slow muddling-through. External pressure was contributory, helping to sharpen the dilemma but neither necessary nor sufficient on its own. A top-band answer states this ranking explicitly and rejects the triumphalist claim that the West simply won, while also rejecting a purely structural account that erases Gorbachev's agency.

Examples in context

Example 1. The triumphalist reading and its limits. The view that Western strength under Reagan won the Cold War became politically influential after 1991. Testing it against the evidence shows its limits: external pressure did raise the cost of competition, but the system was already failing from within, and it was Gorbachev's choices, not Western policy, that produced a peaceful end. The triumphalist reading is therefore a useful illustration of how political agendas can shape historical interpretation, and of why a balanced account ranks internal causes above external ones.

Example 2. Contingency and the renunciation of force. Gorbachev's decision not to use force in Eastern Europe in 1989 is the clearest case for the agency explanation. Earlier Soviet leaders had crushed reform with tanks; a hardliner facing the same decline might have done so again. That the end was peaceful, and came in 1989 to 1991 rather than later or never, owed much to this choice, which shows why a purely structural account that treats the outcome as inevitable is inadequate.

Try this

Q1. State the three main explanations for the end of the Cold War. [4 marks]

• Cue. Internal Soviet decline (economic failure), individual agency (above all Gorbachev's choices), and external pressure (the Reagan build-up and renewed confrontation).

Q2. Explain why historians disagree about whether the West won the Cold War. [12 marks]

• Cue. The triumphalist reading credits Western pressure; others stress that the system was failing from within and that Gorbachev's choices, not Western policy, produced the peaceful end; the disagreement turns on the weight given to external versus internal causes.

Q3. "The end of the Cold War was inevitable." How far do you agree? [20 marks]

• Cue. Argue that internal decline made change likely but that agency shaped its timing and peaceful form, so the specific outcome was not inevitable; rank internal decline, agency and external pressure before judging.