When exactly did the Japanese internment in Washington start?

The Japanese internment in Washington state began in April 1942, shortly after the United States entered World War II. The first internment camp, the Puyallup Assembly Center, was established in March 1942, and individuals of Japanese descent were forcibly relocated to this camp starting in April. This was part of a broader policy that led to the internment of around 120,000 Japanese Americans across the country.