World War II Cause and Effect Worksheet | Teach Starter - Free Printable

Let's solve the "World War II: Causes & Effects" worksheet step by step. The goal is to identify the cause or effect for each statement based on historical context.

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1st Row:

- Effect: *Adolf Hitler continued to show signs of military aggression.*
- Cause: (To be filled in)

Analysis:
Hitler’s military aggression was a major cause leading up to WWII. His actions included:
- Remilitarization of the Rhineland
- Annexation of Austria (Anschluss)
- Occupation of Czechoslovakia

These actions were causes that led to increased tensions and eventually war.

✔ Answer:
Cause: *Hitler violated the Treaty of Versailles by rebuilding Germany’s military and expanding territory.*

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2nd Row:

- Cause: *Germany invaded Poland.*
- Effect: (To be filled in)

Analysis:
The invasion of Poland on September 1, 1939, was the event that directly triggered the start of World War II.

This caused:
- Britain and France to declare war on Germany
- The beginning of large-scale global conflict

✔ Answer:
Effect: *Britain and France declared war on Germany, marking the official start of World War II.*

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3rd Row:

- Cause: *Japan invaded Indochina.*
- Effect: (To be filled in)

Analysis:
Japan’s invasion of French Indochina (modern-day Vietnam, Laos, Cambodia) in 1940–1941 was part of its expansionist policy in Asia.

This action:
- Led to U.S. economic sanctions against Japan
- Increased tensions between Japan and the United States
- Was a contributing factor to Japan’s attack on Pearl Harbor in December 1941

✔ Answer:
Effect: *The United States imposed trade embargoes on Japan, leading to increased tensions and eventually the attack on Pearl Harbor.*

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✔ Final Answers:

| CAUSE | EFFECT |
|------|--------|
| Hitler violated the Treaty of Versailles by rebuilding Germany’s military and expanding territory. | Adolf Hitler continued to show signs of military aggression. |
| Germany invaded Poland. | Britain and France declared war on Germany, marking the official start of World War II. |
| Japan invaded Indochina. | The United States imposed trade embargoes on Japan, leading to increased tensions and eventually the attack on Pearl Harbor. |

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Summary:

This worksheet helps students understand how specific causes (like invasions and territorial expansions) led to significant effects (such as declarations of war and global conflict). It emphasizes the chain reaction of events that escalated into World War II.