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Background of the Japanese American Internment

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Background of the Japanese American Internment

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After Japan bombed Pearl Harbor on December 7, 1941, fear and suspicion towards Japanese Americans exploded. President Franklin D. Roosevelt signed Executive Order 9066 on February 19, 1942, which authorized the U.S. military to remove Japanese Americans from the West Coast. Over 120,000 people (documented AND undocumented) were relocated to internment camps across the country. No charges were filed against them, they were imprisoned simply because of their ancestry.

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Wartime hysteria, racism, and false beliefs that Japanese Americans might help Japan led to this mass relocation. Media, politicians, and military officials fueled public fear without any real evidence. The U.S. Government claimed it was for national security, but later admitted it was based on racial prejudice and panic, not facts. This was confirmed in the official report “Personal Justice Denied” and led to a formal apology and reparations in 1988.

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Parallels to The Crucible and The Scarlet Letter

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Parallels to The Crucible and The Scarlet Letter

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The Japanese American Internment during WWII reflects several powerful themes from The Crucible and The Scarlet Letter. These texts warn against the dangers of fear-based justice, public shaming, and societal conformity.

- In The Crucible, innocent people are accused and punished during a time of hysteria, just like Japanese Americans were imprisoned out of fear, not facts. The government, like the Salem court, chose to act on paranoia rather than evidence.

-Abigail Williams manipulates the Salem witch trials for personal gain, showing how fear can be weaponized. Similarly, politicians and military leaders used wartime fear to justify racist policies, stripping Japanese Americans of their rights.

- In The Scarlet Letter, Hester Prynne is publicly shamed and forced to wear a scarlet “A”, symbolizing her sin. Japanese Americans, too, were labeled and separated, not because of anything they did, but because of who they were.

- The Puritan society in The Scarlet Letter isolates Hester from the community. Likewise, Japanese American families were forced into isolated internment camps, far from their homes, simply because society feared them.

These connections remind us how easily a society can fall into injustice when fear replaces reason, and how deeply those injustices can affect individuals and communities.

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Japanese Americans were forced into isolated camps surrounded by barbed wire and armed guards. Families lived in tiny barracks with little privacy and poor conditions. Despite this, they established schools, churches, and community centers to sustain themselves emotionally and spiritually. Harsh weather and inadequate food were common struggles.

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Ugly History: Japanese American incarceration camps - Densho

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"Despite these conditions, the incarcerated Japanese Americans did what they could to make the camps feel as much like home as possible. They established newspapers, markets, schools, and even police and fire departments."

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UPI/Bettmann Archive/Getty Images

Published: October 29, 2009

Last Updated: February 27, 2025

Japanese internment camps were established during World War II by President Franklin D. Roosevelt through his Executive Order 9066. From 1942 to 1945, it was the policy of the U.S. government that people of Japanese descent, including U.S. citizens, would be incarcerated in isolated camps. Enacted in reaction to the Pearl Harbor attacks and the ensuing war, the incarceration of Japanese Americans is considered one of the most atrocious violations of American civil rights in the 20th century.

Japanese-American Relocation

After the attack on Pearl Harbor, the United States Government issued executive order 9066, which empowered the military to round up anyone of Japanese ancestry and place them in internment camps.

Executive Order 9066

On February 19, 1942, shortly after the bombing of Pearl Harbor by Japanese forces, President Roosevelt signed Executive Order 9066 with the stated intention of preventing espionage on American shores.

Military zones were created in California, Washington and Oregon-states with a large population of Japanese Americans. Then Roosevelt's executive order forcibly removed Americans of Japanese ancestry from their homes. Executive Order 9066 affected the lives about 120,000 people-the majority of whom were American citizens.

Canada soon followed suit, forcibly removing 21,000 of its residents of Japanese descent from its west coast. Mexico enacted its own version, and eventually 2,264 more people of Japanese descent were forcibly removed from Peru, Brazil, Chile and Argentina to the United States.

Anti-Japanese American Activity

Weeks before the order, the Navy removed citizens of Japanese descent from Terminal Island near the Port of Los Angeles.

On December 7, 1941, just hours after the bombing of Pearl Harbor, the FBI rounded-up 1,291 Japanese American community and religious leaders, arresting them without evidence and freezing their assets.

In January, the arrestees were transferred to prison camps in Montana, New Mexico and North Dakota, many unable to inform their families and most remaining for the duration of the war.

Concurrently, the FBI searched the private homes of thousands of Japanese American residents on the West Coast, seizing items considered contraband.

One-third of Hawaii's population was of Japanese descent. In a panic, some politicians called for their mass incarceration. Japanese-owned fishing boats were impounded.

Some Japanese American residents were arrested and 1,500 people-one percent of the Japanese population in Hawaii-were sent to prison camps on the U.S. mainland.

Photos of Japanese American Relocation and Incarceration

John DeWitt

Lt. General John L. DeWitt, leader of the Western Defense Command, believed that the civilian population needed to be taken control of to prevent a repeat of Pearl Harbor.

To argue his case, DeWitt prepared a report filled with known falsehoods, such as examples of sabotage that were later revealed to be the result of cattle damaging power lines.

DeWitt suggested the creation of the military zones and Japanese detainment to Secretary of War Henry Stimson and Attorney General Francis Biddle. His original plan included Italians and Germans, though the idea of rounding-up Americans of European descent was not as popular.

At Congressional hearings in February 1942, a majority of the testimonies, including those from California Governor Culbert L. Olson and State Attorney General Earl Warren, declared that all Japanese should be removed.

Biddle pleaded with the president that mass incarceration of citizens was not required, preferring smaller, more targeted security measures. Regardless, Roosevelt signed the order.

War Relocation Authority

After much organizational chaos, about 15,000 Japanese Americans willingly moved out of prohibited areas. Inland state citizens were not keen for new Japanese American residents, and they were met with racist resistance.

Ten state governors voiced opposition, fearing the Japanese Americans might never leave, and demanded they be locked up if the states were forced to accept them.

A civilian organization called the War Relocation Authority was set up in March 1942 to administer the plan, with Milton S. Eisenhower from the Department of Agriculture to lead it. Eisenhower only lasted until June 1942, resigning in protest over what he characterized as incarcerating innocent citizens.

Flashback: How Japanese Americans Were Forced Into Concentration Camps During WWII

The internment of Japanese Americans began after President Roosevelt signed Executive Order 9066 in February 1942. For the following three years, American men, women, and children were forced to live under prison-like conditions in remote concentration camps. This 1943 film explains the internment from the U.S. government's perspective.

Relocation to 'Assembly Centers'

Army-directed removals began on March 24. People had six days notice to dispose of their belongings other than what they could carry.

Anyone who was at least 1/16th Japanese was evacuated, including 17,000 children under age 10, as well as several thousand elderly and disabled residents.

Japanese Americans reported to "Assembly Centers" near their homes. From there they were transported to a "Relocation Center" where they might live for months before transfer to a permanent "Wartime Residence."

Assembly Centers were located in remote areas, often reconfigured fairgrounds and racetracks featuring buildings not meant for human habitation, like horse stalls or cow sheds, that had been converted for that purpose. In Portland, Oregon, 3,000 people stayed in the livestock pavilion of the Pacific International Livestock Exposition Facilities.

The Santa Anita Assembly Center, just several miles northeast of Los Angeles, was a de-facto city with 18,000 incarcerated, 8,500 of whom lived in stables. Food shortages and substandard sanitation were prevalent in these facilities.

Life in 'Assembly Centers'

Assembly Centers offered work to prisoners with the policy that they should not be paid more than an Army private. Jobs ranged from doctors to teachers to laborers and mechanics. A couple were the sites of camouflage net factories, which provided work.

Over 1,000 incarcerated Japanese Americans were sent to other states to do seasonal farm work. Over 4,000 of the incarcerated population were allowed to leave to attend college.

Conditions in 'Relocation Centers'

There were a total of 10 prison camps, called "Relocation Centers." Typically the camps included some form of barracks with communal eating areas. Several families were housed together. Residents who were labeled as dissidents were forced to a special prison camp in Tule Lake, California.

Two prison camps in Arizona were located on Native American reservations, despite the protests of tribal councils, who were overruled by the Bureau of Indian Affairs.

Each Relocation Center was its own "town," and included schools, post offices and work facilities, as well as farmland for growing food and keeping livestock. Each prison camp "town" was completely surrounded by barbed wire and guard towers.

Net factories offered work at several Relocation Centers. One housed a naval ship model factory. There were also factories in different Relocation Centers that manufactured items for use in other prison camps, including garments, mattresses and cabinets. Several housed agricultural processing plants.

Violence in Prison Camps

Violence occasionally occurred in the prison camps. In Lordsburg, New Mexico, prisoners were delivered by trains and forced to march two miles at night to the camp. On July 27, 1942, during a night march, two Japanese Americans, Toshio Kobata and Hirota Isomura, were shot and killed by a sentry who claimed they were attempting to escape. Japanese Americans testified later that the two elderly men were disabled and had been struggling during the march to Lordsburg. The sentry was found not guilty by the army court martial board.

On August 4, 1942, a riot broke out in the Santa Anita Assembly Center, the result of anger about insufficient rations and overcrowding. At California's Manzanar War Relocation Center, tensions resulted in the beating of Fred Tayama, a Japanese American Citizen's League (JACL) leader, by six men. JACL members were believed to be supporters of the prison camp's administration.

Fearing a riot, police tear-gassed crowds that had gathered at the police station to demand the release of Harry Ueno. Ueno had been arrested for allegedly assaulting Tayama. James Ito was killed instantly and several others were wounded. Among those injured was Jim Kanegawa, 21, who died of complications five days later.

At the Topaz Relocation Center, 63-year-old prisoner James Hatsuki Wakasa was shot and killed by military police after walking near the perimeter fence. Two months later, a couple was shot at for strolling near the fence.

In October 1943, the Army deployed tanks and soldiers to Tule Lake Segregation Center in northern California to crack down on protests. Japanese American prisoners at Tule Lake had been striking over food shortages and unsafe conditions that had led to an accidental death in October 1943. At the same camp, on May 24, 1943, James Okamoto, a 30-year-old prisoner who drove a construction truck, was shot and killed by a guard.

Fred Korematsu

In 1942, 23-year-old Japanese-American Fred Korematsu was arrested for refusing to relocate to a Japanese prison camp. His case made it all the way to the Supreme Court, where his attorneys argued in Korematsu v. United States that Executive Order 9066 violated the Fifth Amendment.

Korematsu lost the case, but he went on to become a civil rights activist and was awarded the Presidential Medal of Freedom in 1998. With the creation of California's Fred Korematsu Day, the United States saw its first U.S. holiday named for an Asian American. But it took another Supreme Court decision to halt the incarceration of Japanese Americans.

Mitsuye Endo

The prison camps ended in 1945 following the Supreme Court decision, Ex parte Mitsuye Endo. In this case, justices ruled unanimously that the War Relocation Authority "has no authority to subject citizens who are concededly loyal to its leave procedure."

The case was brought on behalf of Mitsuye Endo, the daughter of Japanese immigrants from Sacramento, California. After filing a habeas corpus petition, the government offered to free her, but Endo refused, wanting her case to address the entire issue of Japanese incarceration.

One year later, the Supreme Court made the decision, but gave President Truman the chance to begin camp closures before the announcement. One day after Truman made his announcement, the Supreme Court revealed its decision.

Reparations

The last Japanese internment camp closed in March 1946. President Gerald Ford officially repealed Executive Order 9066 in 1976, and in 1988, Congress issued a formal apology and passed the Civil Liberties Act awarding $20,000 each to over 80,000 Japanese Americans as reparations for their treatment.

Sources

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Citation Information

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Japanese Internment Camps

Date Accessed

March 24, 2025

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Last Updated

February 27, 2025

Original Published Date

October 29, 2009

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Japanese Internment Camps: WWII, Life & Conditions | HISTORY

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Japanese internment camps were established during World War II by President Franklin D. Roosevelt through his Executive Order 9066. From 1942 to 1945, it was the policy of the U.S. government that people of Japanese descent, including U.S. citizens, be incarcerated.

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In his speech to Congress, President Franklin Delano Roosevelt declared that the Japanese attack on Pearl Harbor on December 7, 1941, was "a date which will live in infamy." The attack launched the United States fully into the two theaters of World War II - Europe and the Pacific. Prior to Pearl Harbor, the United States had been involved in a non-combat role, through the Lend-Lease Program that supplied England, China, Russia, and other anti-fascist countries of Europe with munitions.

The attack on Pearl Harbor also launched a rash of fear about national security, especially on the West Coast. In February 1942, just two months later, President Roosevelt, as commander-in-chief, issued Executive Order 9066 that resulted in the internment of Japanese Americans. The order authorized the Secretary of War and military commanders to evacuate all persons deemed a threat from the West Coast to internment camps, that the government called "relocation centers," further inland. Read more...

Primary Sources
Links go to DocsTeach, the online tool for teaching with documents from the National Archives.
Teaching Activity

Additional Background Information

Prior to the outbreak of World War II, the Federal Bureau of Investigation (FBI) had identified German, Italian, and Japanese aliens who were suspected of being potential enemy agents; and they were kept under surveillance. Following the attack at Pearl Harbor, government suspicion arose not only around aliens who came from enemy nations, but around all persons of Japanese descent, whether foreign born ( issei) or American citizens ( nisei). During congressional committee hearings, representatives of the Department of Justice raised logistical, constitutional, and ethical objections. Regardless, the task was turned over to the U.S. Army as a security matter.

The entire West Coast was deemed a military area and was divided into military zones. Executive Order 9066 authorized military commanders to exclude civilians from military areas. Although the language of the order did not specify any ethnic group, Lieutenant General John L. DeWitt of the Western Defense Command proceeded to announce curfews that included only Japanese Americans. Next, he encouraged voluntary evacuation by Japanese Americans from a limited number of areas; about seven percent of the total Japanese American population in these areas complied.

On March 29, 1942, under the authority of the executive order, DeWitt issued Public Proclamation No. 4, which began the forced evacuation and detention of Japanese-American West Coast residents on a 48-hour notice. Only a few days prior to the proclamation, on March 21, Congress had passed Public Law 503, which made violation of Executive Order 9066 a misdemeanor punishable by up to one year in prison and a $5,000 fine.

Because of the perception of "public danger," all Japanese Americans within varied distances from the Pacific coast were targeted. Unless they were able to dispose of or make arrangements for care of their property within a few days, their homes, farms, businesses, and most of their private belongings were lost forever.

From the end of March to August, approximately 112,000 persons were sent to "assembly centers" - often racetracks or fairgrounds - where they waited and were tagged to indicate the location of a long-term "relocation center" that would be their home for the rest of the war. Nearly 70,000 of the evacuees were American citizens. There were no charges of disloyalty against any of these citizens, nor was there any vehicle by which they could appeal their loss of property and personal liberty.

"Relocation centers" were situated many miles inland, often in remote and desolate locales. Sites included Tule Lake and Manzanar in California; Gila River and Poston in Arizona; Jerome and Rohwer in Arkansas, Minidoka in Idaho; Topaz in Utah; Heart Mountain in Wyoming; and Granada in Colorado. (Incarceration rates were significantly lower in the territory of Hawaii, where Japanese Americans made up over one-third of the population and their labor was needed to sustain the economy. However, martial law had been declared in Hawaii immediately following the Pearl Harbor attack, and the Army issued hundreds of military orders, some applicable only to persons of Japanese ancestry.)

In the "relocation centers" (also called "internment camps"), four or five families, with their sparse collections of clothing and possessions, shared tar-papered army-style barracks. Most lived in these conditions for nearly three years or more until the end of the war. Gradually some insulation was added to the barracks and lightweight partitions were added to make them a little more comfortable and somewhat private. Life took on some familiar routines of socializing and school. However, eating in common facilities, using shared restrooms, and having limited opportunities for work interrupted other social and cultural patterns. Persons who resisted were sent to a special camp at Tule Lake, CA, where dissidents were housed.

In 1943 and 1944, the government assembled a combat unit of Japanese Americans for the European theater. It became the 442d Regimental Combat Team and gained fame as the most highly decorated of World War II. Their military record bespoke their patriotism.

As the war drew to a close, "internment camps" were slowly evacuated. While some persons of Japanese ancestry returned to their hometowns, others sought new surroundings. For example, the Japanese-American community of Tacoma, WA, had been sent to three different centers; only 30 percent returned to Tacoma after the war. Japanese Americans from Fresno had gone to Manzanar; 80 percent returned to their hometown.

The internment of Japanese Americans during World War II sparked constitutional and political debate. During this period, three Japanese-American citizens challenged the constitutionality of the forced relocation and curfew orders through legal actions: Gordon Hirabayashi, Fred Korematsu, and Mitsuye Endo. Hirabayashi and Korematsu received negative judgments; but Mitsuye Endo, after a lengthy battle through lesser courts, was determined to be "loyal" and allowed to leave the Topaz, Utah, facility.

Justice Murphy of the Supreme Court expressed the following opinion in Ex parte Mitsuye Endo:

I join in the opinion of the Court, but I am of the view that detention in Relocation Centers of persons of Japanese ancestry regardless of loyalty is not only unauthorized by Congress or the Executive but is another example of the unconstitutional resort to racism inherent in the entire evacuation program. As stated more fully in my dissenting opinion in Fred Toyosaburo Korematsu v. United States, 323 U.S. 214 , 65 S.Ct. 193, racial discrimination of this nature bears no reasonable relation to military necessity and is utterly foreign to the ideals and traditions of the American people.

In 1988, Congress passed, and President Reagan signed, Public Law 100-383 - the Civil Liberties Act of 1988 - that acknowledged the injustice of "internment," apologized for it, and provided a $20,000 cash payment to each person who was incarcerated.

One of the most stunning ironies in this episode of denied civil liberties was articulated by an internee who, when told that Japanese Americans were put in those camps for their own protection, countered "If we were put there for our protection, why were the guns at the guard towers pointed inward, instead of outward?"

A note on terminology: The historical primary source documents included on this page reflect the terminology that the government used at the time, such as alien, evacuation, relocation, relocation centers, internment, and Japanese (as opposed to Japanese American).
Materials created by the National Archives and Records Administration are in the public domain.

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Japanese-American Incarceration During World War II

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In his speech to Congress, President Franklin Delano Roosevelt declared that the Japanese attack on Pearl Harbor on December 7, 1941, was "a date which will live in infamy." The attack launched the United States fully into the two theaters of World War II - Europe and the Pacific.

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Some Japanese Americans refused to comply with internment. Fred Korematsu challenged the government in court, and his case, Korematsu v. United States, reached the Supreme Court in 1944. The Court sided with the government, but his conviction was overturned in 1983. Other resisters like Gordon Hirabayashi and Minoru Yasui also fought back legally.

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The camps closed by 1945, but many internees returned to destroyed homes and lost businesses. There was no government support to help them rebuild. The U.S. did not formally apologize until the Civil Liberties Act of 1988, when President Reagan gave each survivor $20,000 in reparations and acknowledged the injustice.

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The internment camps left deep emotional scars and financial losses for families. It also became a warning about what happens when fear overrides justice. The case of Fred Korematsu is now studied as a civil rights landmark, and his legacy reminds Americans to protect constitutional rights even during national emergencies.

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The internment of Japanese Americans shows how quickly fear can lead to injustice. After 9/11, Muslim Americans faced similar suspicion and surveillance. During COVID-19, anti-Asian hate rose again. The event also connects to how immigrant groups today are detained or profiled, repeating lessons we should’ve already learned.