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Cambridge IGCSE History revision notes

How far was Hitler’s foreign policy to blame for the outbreak of war in Europe in 1939? Revision Notes

Cambridge IGCSE revision notes for How far was Hitler’s foreign policy to blame for the outbreak of war in Europe in 1939?.

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How far was Hitler’s foreign policy to blame for the outbreak of war in Europe in 1939?

CambridgeIGCSEHistoryCore content: Option B

Complete revision guide

Evaluating Hitler’s Foreign Policy and the Outbreak of War in Europe, 1939

This revision note analyses how Hitler’s foreign policy contributed to the outbreak of World War II in Europe in 1939. It examines the impact of the Treaty of Versailles, the failures of the League of Nations, the policy of appeasement, the Nazi-Soviet Pact, and the reasons behind Britain and France declaring war on Germany. Key events such as rearmament, the remilitarization of the Rhineland, the Anschluss, the Munich Agreement, and the Polish crisis are explained with their causal links to the war’s outbreak.

Syllabus source

Section 3, Topic OB.3, page 16, objective OB.3.1

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What you should be able to do

  • ✓Understand Hitler’s foreign policy goals and actions between 1933 and 1939.
  • ✓Analyse the impact of the Treaty of Versailles on German foreign policy.
  • ✓Evaluate the role and failures of the League of Nations in the 1930s.
  • ✓Explain the reasons for and consequences of appeasement by Britain and France.
  • ✓Assess the significance of the Nazi-Soviet Pact in the lead-up to war.
1

Hitler’s Foreign Policy Goals and Early Actions

Hitler aimed to overturn the Treaty of Versailles, which he and many Germans viewed as humiliating and unjust. His goals included rearming Germany, uniting all German-speaking peoples, and expanding German territory to provide Lebensraum (living space) in Eastern Europe.

From 1933, Hitler began rearming Germany, violating the Treaty’s military restrictions. In 1935, conscription was reintroduced, and the Luftwaffe (air force) was established.

In 1935, the Saar region was returned to Germany after a League of Nations plebiscite, boosting Hitler’s confidence and popularity. In 1936, the remilitarization of the Rhineland was a direct challenge to the Treaty and the League, as German troops entered this demilitarized zone without opposition. This bold move strengthened Hitler’s position and weakened the credibility of the League of Nations.

  • Overturn Treaty of Versailles and restore German power.
  • Rearmament including conscription and Luftwaffe.
  • Saar plebiscite returns territory to Germany.
  • Remilitarization of Rhineland challenges international order.
2

International Alliances and Conflicts

Hitler sought alliances to strengthen Germany’s position. The Rome-Berlin Axis (1936) aligned Germany with Fascist Italy, and the Anti-Comintern Pact (1936) united Germany, Italy, and Japan against communism, particularly the Soviet Union.

Germany’s involvement in the Spanish Civil War (1936–1939) supported Franco’s Nationalists, testing military tactics and strengthening ties with Italy.

The Anschluss in 1938 annexed Austria into Germany, fulfilling Hitler’s goal of uniting German-speaking peoples. This was done without military opposition, highlighting the weakness of international resistance.

  • Rome-Berlin Axis and Anti-Comintern Pact solidify alliances.
  • Spanish Civil War involvement tests military and alliances.
  • Anschluss unites Austria with Germany without opposition.
3

The Crisis in Czechoslovakia and the Munich Agreement

Hitler demanded the Sudetenland, a region of Czechoslovakia with a large ethnic German population. Britain and France, fearing war, pursued appeasement, culminating in the Munich Agreement (September 1938).

The agreement allowed Germany to annex the Sudetenland without Czechoslovakian consent, in exchange for Hitler’s promise of no further territorial claims.

This policy of appeasement failed to prevent war; it emboldened Hitler, who saw Western powers as weak and unwilling to confront aggression.

  • Sudetenland crisis tests European diplomacy.
  • Munich Agreement permits German annexation of Sudetenland.
  • Appeasement encourages further German aggression.
4

The Nazi-Soviet Pact and the Polish Crisis

In August 1939, Germany and the Soviet Union signed the Nazi-Soviet Pact, a non-aggression treaty that shocked the world. It included secret protocols to divide Eastern Europe into spheres of influence.

This pact removed the threat of a two-front war for Germany, enabling Hitler to plan the invasion of Poland with less risk.

The invasion of Poland on 1 September 1939 triggered Britain and France to declare war on Germany, marking the official start of World War II in Europe.

  • Nazi-Soviet Pact secures German eastern border.
  • Secret agreement to divide Eastern Europe.
  • Invasion of Poland leads to Britain and France declaring war.
5

The Role of the Treaty of Versailles, League of Nations, and Appeasement

The Treaty of Versailles left Germany economically weakened and territorially reduced, fostering resentment that Hitler exploited to justify his aggressive policies.

The League of Nations failed to act decisively against German violations such as the remilitarization of the Rhineland and the Anschluss, undermining collective security.

Appeasement by Britain and France was motivated by the desire to avoid another war and the belief that some of Hitler’s demands were reasonable. However, it ultimately failed to contain German expansionism.

  • Treaty of Versailles created grievances exploited by Hitler.
  • League of Nations’ inability to enforce peace encouraged aggression.
  • Appeasement delayed but did not prevent war.

At-a-glance summary

Comparison table

StepDetailExampleExam Use
Treaty of VersaillesCreated German resentment and desire to revise post-war orderGermany’s loss of territory and military restrictionsExplain how Versailles influenced Hitler’s aims
League of NationsFailed to enforce peace or punish aggressionNo action against Rhineland remilitarizationDiscuss League’s weakness in 1930s
AppeasementPolicy to avoid war by conceding to some demandsMunich Agreement allowing Sudetenland annexationEvaluate appeasement’s impact on war outbreak
Nazi-Soviet PactNon-aggression pact with secret territorial divisionAgreement enabling invasion of PolandAssess pact’s role in enabling German aggression
Declaration of WarBritain and France’s response to invasion of PolandWar declared on Germany 3 September 1939Explain why war was declared in 1939

Active recall

Quick check

1. What was the significance of the remilitarization of the Rhineland in 1936?

It was a direct violation of the Treaty of Versailles and the Locarno Treaties, testing the resolve of Britain and France; their inaction encouraged further German aggression.

2. Why did Britain and France adopt a policy of appeasement towards Hitler?

They wanted to avoid another war, believed some of Hitler’s demands were reasonable, and were unprepared militarily for conflict.

3. How did the Nazi-Soviet Pact affect Hitler’s plans for Poland?

It ensured the Soviet Union would not oppose Germany’s invasion, removing the risk of a two-front war and enabling the attack on Poland.

4. What event triggered Britain and France to declare war on Germany?

Germany’s invasion of Poland on 1 September 1939 led Britain and France to declare war on 3 September 1939.

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