Great Purge

The Great Purge (1936-1938) was Stalin's campaign of mass repression in the Soviet Union, using show trials, the NKVD secret police, executions, and the gulag system to eliminate party officials, military officers, and ordinary citizens labeled enemies of the state.

Verified for the 2027 AP European History examLast updated June 2026

What is the Great Purge?

The Great Purge was Stalin's two-year campaign (1936-1938) to wipe out anyone he saw as a threat to his power. That included old Bolsheviks who had served alongside Lenin, top Red Army generals, regional party officials, and eventually millions of ordinary people denounced by neighbors or coworkers. The machinery of the purge ran on the NKVD (the secret police), public show trials where defendants confessed to invented crimes, mass executions, and deportation to forced-labor camps.

For AP Euro, the Great Purge is the clearest example of what the CED calls Stalin's "oppressive political system" (KC-4.2.I.E). It's the political half of Stalinism. The economic half was collectivization and the Five Year Plans, and the two worked together. Rapid modernization created chaos and failure, and the purges gave Stalin scapegoats to blame for it. The result was a society where fear itself became a tool of government, which is exactly what the exam means by totalitarianism.

Why the Great Purge matters in AP Euro

The Great Purge lives in Topic 8.6 (Fascism and Totalitarianism) in Unit 8, directly supporting learning objective AP Euro 8.6.B, which asks you to explain the consequences of Stalin's economic policies and totalitarian rule. The CED's essential knowledge (KC-4.2.I.E) names "purges of political rivals" explicitly as part of the high price of Stalin's modernization, alongside the liquidation of the kulaks and the Ukrainian famine. The purge also gives you a comparison point for AP Euro 8.6.A, since Stalin's terror-based control parallels (but isn't identical to) the methods Hitler and Mussolini used. It even echoes forward into Topic 9.5, where you analyze state violence and mass atrocities in postwar Europe. If an exam question asks how 20th-century regimes maintained control, the Great Purge is one of your strongest pieces of evidence.

How the Great Purge connects across the course

Show Trials (Unit 8)

Show trials were the public face of the Great Purge. Old Bolsheviks like Zinoviev and Kamenev confessed to fake conspiracies in staged courtrooms, which let Stalin dress up murder as justice. The trials are the propaganda layer; the purge is the whole machine underneath.

NKVD (Unit 8)

The NKVD was the secret police force that actually carried out the purge through arrests, interrogations, executions, and gulag deportations. When an MCQ asks about the NKVD's function in the 1930s, the Great Purge is the answer it's pointing at.

Collectivization and the Five Year Plans (Unit 8)

The CED bundles the purges with Stalin's economic policies for a reason. Collectivization crushed the kulaks and caused famine in Ukraine; the purges crushed political rivals. Together they show that Stalin's modernization ran on coercion in both the economy and politics.

Mass Atrocities Since 1945 (Unit 9)

Topic 9.5 covers state-driven mass violence after WWII, like ethnic cleansing in the Balkans. The Great Purge gives you the interwar precedent, so you can build continuity arguments about European states turning violence against their own populations across the 20th century.

Is the Great Purge on the AP Euro exam?

Multiple-choice questions usually test the Great Purge in one of three ways. First, identifying Stalin's objective (the purge served to eliminate political rivals and consolidate his personal power). Second, identifying who was targeted (party officials, Red Army officers, old Bolsheviks, and ordinary citizens, not just one group). Third, distinguishing it from earlier Bolshevik repression. Lenin's Red Terror targeted enemies of the revolution, while Stalin's purge turned inward and devoured the Communist Party itself. No released FRQ has used the term verbatim, but the Great Purge is prime evidence for LEQs and DBQs on totalitarianism, the consequences of Stalin's rule (AP Euro 8.6.B), or comparisons between Soviet and fascist methods of control. Use it with specifics, naming the NKVD, show trials, and the 1936-1938 dates, rather than just saying "Stalin was repressive."

The Great Purge vs Show Trials

The show trials were one component of the Great Purge, not a synonym for it. Show trials were the highly publicized trials of prominent old Bolsheviks who confessed to fabricated crimes; the Great Purge is the entire 1936-1938 campaign, including the NKVD's mass arrests, executions, and gulag deportations of millions who never saw a courtroom. Think of show trials as the visible theater and the purge as the full operation.

Key things to remember about the Great Purge

  • The Great Purge (1936-1938) was Stalin's campaign to eliminate perceived enemies, including party officials, military leaders, and ordinary citizens, through arrest, execution, and the gulag system.

  • It ran on two main tools, the NKVD secret police and public show trials where defendants confessed to invented crimes.

  • Unlike earlier Bolshevik repression, which targeted enemies of the revolution, the Great Purge turned inward and destroyed members of the Communist Party itself.

  • The CED pairs the purges with collectivization and the Ukrainian famine as the human cost of Stalin's rapid modernization (KC-4.2.I.E).

  • Purging top Red Army officers seriously weakened Soviet military leadership right before World War II.

  • On the exam, the Great Purge is your go-to evidence for how totalitarian regimes used terror to maintain control, supporting AP Euro 8.6.B.

Frequently asked questions about the Great Purge

What was the Great Purge in AP Euro?

The Great Purge was Stalin's 1936-1938 campaign of mass repression in the Soviet Union, using the NKVD, show trials, executions, and labor camps to eliminate political rivals and anyone labeled an enemy of the state. In AP Euro it falls under Topic 8.6 on fascism and totalitarianism.

Did the Great Purge only target Communist Party officials?

No. While old Bolsheviks and party officials were the most famous victims, the purge also hit Red Army officers, intellectuals, kulaks, and millions of ordinary citizens denounced by others. The broad reach is exactly what made it totalitarian rather than a simple political housecleaning.

How is the Great Purge different from the show trials?

The show trials were just the public, theatrical piece of the Great Purge, staged trials of prominent figures like Zinoviev and Kamenev who confessed to fake crimes. The purge itself was far bigger, covering mass NKVD arrests, executions, and gulag deportations from 1936 to 1938.

How did the Great Purge differ from earlier Bolshevik repression?

Lenin-era repression, like the Red Terror during the civil war, targeted external enemies of the revolution such as tsarists and rival socialists. Stalin's Great Purge turned the violence inward, destroying loyal Communist Party members and military leaders to secure his personal power.

Why does the Great Purge matter for the AP Euro exam?

It directly supports learning objective AP Euro 8.6.B on the consequences of Stalin's totalitarian rule, and the CED names purges of political rivals as essential knowledge. It also gives you strong comparison evidence for essays contrasting Soviet, Nazi, and fascist Italian methods of control.

Great Purge — AP Euro Definition & Exam Guide | Fiveable