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Made violations of military orders a criminal offense Gave legal enforcement to Executive Order 9066 This law allowed arrests and punishment for noncompliance.
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1. Pearl Harbor
Date: December 7, 1941
What it was: A surprise military attack by Japan on the U.S. naval base in Hawaiʻi
By whom: Japanese Imperial Navy
Immediate result: U.S. entry into World War II
Context:
The attack triggered mass fear and anger. Although the attack was carried out by Japan’s military, suspicion quickly shifted to Japanese Americans living in the U.S., especially on the West Coast.
2. “Day of Infamy” Speech
Date: December 8, 1941
By whom: President Franklin D. Roosevelt
What it was: Speech to Congress requesting a declaration of war
Key phrase: “A date which will live in infamy”
Context:
The speech framed the attack as sudden and unprovoked. It helped create a climate where fear felt justified and extreme government actions seemed necessary.
3. “Fifth Column”
What it means: A group inside a country secretly helping the enemy
Context in slides:
Japanese Americans were accused of being a potential “fifth column” for Japan
Key fact:
Intelligence agencies found no evidence of organized sabotage, but the accusation spread anyway
Why it mattered:
This idea justified treating an entire group as suspicious based on ancestry.
4. Executive Order No. 9066 (1942)
Date: February 19, 1942
By whom: President Franklin D. Roosevelt
What it did:
Gave the military authority to designate military zones and remove people
Key detail:
It never mentioned Japanese Americans by name
Result:
Used almost exclusively against people of Japanese descent
Why it mattered:
This was the legal foundation for mass removal and incarceration.
5. Executive Order No. 9102 (1942)
Date: March 18, 1942
By whom: President Franklin D. Roosevelt
What it did:
Created the War Relocation Authority (WRA)
Purpose:
To manage the forced removal, detention, and later resettlement of Japanese Americans
6. War Relocation Authority (WRA)
Created: 1942
What it was: Federal civilian agency
Responsibilities:
Running incarceration camps
Providing food, housing, schooling
Managing labor and resettlement
Context:
The WRA framed incarceration as “relocation,” masking the reality of imprisonment.
7. Public Law 503 (1942)
Date: March 21, 1942
What it did:
Made it a federal crime to violate military exclusion orders
Why it mattered:
Turned removal into a criminally enforceable action
Context:
This law punished resistance and made compliance mandatory.
8. Proclamation No. 1
Date: March 2, 1942
By whom: Lt. Gen. John L. DeWitt
What it did:
Declared parts of the West Coast as military zones
Context:
First formal step toward mass exclusion.
9. Proclamation No. 2
What it did:
Expanded military zones
Context:
Increased the number of people subject to removal.
10. Proclamation No. 3
What it did:
Imposed curfews and movement restrictions
Who it targeted:
Japanese Americans
Why it mattered:
Treated them as dangerous before any crime was committed.
11. Proclamation No. 4
What it did:
Further enforced exclusion and removal
Context:
Prepared for full-scale evacuation.
12. Civilian Exclusion Order
What it was:
Official military orders requiring civilians to leave designated zones
Context:
Families were given days to prepare
Reality:
Loss of homes, farms, and businesses.
13. Civilian Exclusion Order No. 34
Date: May 1942
What it did:
Ordered removal of Japanese Americans from Los Angeles
Why it’s famous:
One of the clearest examples of forced mass removal.
14. Temporary Detention Camps
What they were:
Short-term holding facilities
Locations:
Racetracks, fairgrounds
Conditions:
Crowded, unsanitary, degrading
Purpose:
Processing before transfer to permanent camps.
15. Permanent Detention Camps
What they were:
Long-term camps run by the WRA
Locations:
Remote deserts, swamps, isolated regions
Features:
Barracks, guard towers, fences
Context:
Designed to isolate and control.
16. Incarceration Camps
What the term emphasizes:
Lack of freedom
Key point from slides:
Japanese Americans were not prisoners of war but were imprisoned anyway
Why the term matters:
It challenges euphemisms like “relocation center.”
17. Munson Report (1941)
By whom: Curtis B. Munson
What it was: Intelligence investigation
Conclusion:
Japanese Americans posed no threat
Context:
Report was ignored after Pearl Harbor
18. Ringle Report – “The Japanese Question” (1942)
By whom: Lt. Commander Kenneth Ringle
What it was: Naval intelligence report
The assimilation of Japanese Americans was successful
3% of the Japanese Americans posed a threat to national security
Conclusion:
Mass removal was unnecessary
Why it mattered:
Confirms incarceration was not based on evidence.
19. Final Report of 1943 (DeWitt)
By whom: Lt. Gen. John L. DeWitt
What it argued:
Japanese Americans could not be trusted because of race
Key phrase:
Loyalty could not be determined
Context:
Provided post-hoc justification for incarceration.
20. Loyalty Questionnaire (1943)
What it was:
Survey given to incarcerated Japanese Americans
Key questions:
Willingness to serve in the U.S. military
Renunciation of loyalty to Japan
21. Resettlement
What it was:
Early release from camps
Where:
Midwest and East Coast
Conditions:
Background checks, job offers
Context:
Allowed dispersal but not full freedom.
22. 442nd Regimental Combat Team
Who: Nisei soldiers
What: U.S. Army unit
Significance:
Most decorated unit for its size
Context:
Fought abroad while families were incarcerated.
23. Japanese American Claims Act of 1948
What it did:
Allowed claims for wartime losses
Limitation:
Paid far less than actual damages
Context:
Acknowledged harm without full accountability.
24. “No-No” Boys
Who:
Those who answered “no” to loyalty questions
Why:
Protested incarceration or wording
Result:
Labeled disloyal and punished.
25. Draft Resisters
Who:
Japanese Americans who refused the draft
Why:
Challenged constitutionality of incarceration
Consequence:
Arrest, imprisonment.
26. Tule Lake Segregation Center
What:
Camp for “disloyal” detainees
Conditions:
Harsher rules, unrest
Context:
Used to isolate dissent.
27. Civil Liberty in Wartime
Theme:
Rights restricted during war
Key issue:
Fear overrides constitutional protections
Context:
Central lesson of the lecture.
28. Hirabayashi v. United States (1943)
Issue:
Curfew constitutionality
Decision:
Government upheld
Context:
Court deferred to military authority.
29. Yasui v. United States (1943)
Issue:
Same as Hirabayashi
Decision:
Curfew upheld
Context:
Reinforced wartime precedent.
30. Korematsu v. United States (1944)
Issue:
Constitutionality of exclusion
Decision:
Exclusion upheld
Key warning (dissent):
Decision created a “loaded weapon”
Context:
Most infamous case in this history.