While anti-illegal immigration measures were a central campaign promise for Trump, Roosevelt was believed by many to have resisted such a broad command at first. But pressure built on the president, already in his third term in 1941, to expand on already existing orders mandating people of Italian, German and Japanese ancestry — the nations in the Axis powers of World War II — to register with the Justice Department and allow authorities to detain them arbitrarily. Anti-Japanese propaganda, often accompanied by racially insensitive depictions, had become prevalent in American media, and paranoia began to spread, causing some to question the loyalties of Japanese-Americans.

 On Feb. 19, 1941, Roosevelt signed Executive Order 9066, evacuating at least 120,000 individuals of Japanese ancestry — the vast majority being U.S. citizens — and sending them to one of 10 internment camps located throughout the country.

The mass migration and forced relocation was believed to have deeply affected the traditional family structures of Japanese-American family households as younger, U.S.-born individuals, referred to as “nisei,” were placed in charge of their elders by the so-called War Relocation Authority. Legal challenges to the executive order were brought all the way up to the Supreme Court, where it was ultimately upheld.