Colonel Karl Robin Bendetsen (October 11, 1907 – June 28, 1989) was an American politician and military officer who served in the Washington Army National Guard during World War II and later as the United States Under Secretary of the Army. Bendetsen is remembered primarily for his role as an architect of the internment of Japanese Americans during World War II, a role he tried to downplay in later years.
Early life
Karl Bendetsen was born into a Lithuanian Jewish family in Aberdeen, Washington. His parents, Albert M. and Anna Bendetson, were first-generation American citizens. Karl changed the spelling of his last name during early 1942, and would later make written claims to descent from Danish lumbermen who had come to America as early as 1670.

Military career
Prior to World War II
Bendetson (as he was then known) enlisted in the 248th Coast Artillery Battalion of the Washington National Guard, at the age of fourteen. While this was well below the legal age, the National Guard turned a blind eye to the many young men who desired to enlist while who were still in—or, as in Bendetsen's case, had yet to enter—high school.

As he matured, Karl studied at Stanford University and participated in the Reserve Officers Training Corps, accepting a commission in the Officers Reserve Corps in 1929. He was ordered to active duty in 1940.

1941
Bendetson, now a major, was on the administrative staff of Judge Advocate General Major General Allen W. Guillion, in the Wartime Civil Control Administration.
In early September 1941, Bendetson was sent to Hawaii to discuss the need to intern enemy aliens in case of war. He stated in his notes that there were 134,000 American citizens of Japanese descent in the islands, and worried that "good Americans" might "give Japs the benefit of the doubt" for economic reasons.
In November, Bendetson was sent to take over an aircraft plant in New Jersey, as part of a plan by President Franklin D. Roosevelt to boost production of factories making materiel needed by Great Britain.
Major Bendetson was given this assignment after having written the orders for seizure and strike-breaking at a North American Aviation plant, but the army had taken charge of the Air Associates plant in October, prior to his arrival. In later years, however, Bendetsen would describe a wild scene of standing on his overturned car to face down the "mass" of strikers who had blocked his way into the plant.
The strike settled, Bendetson was back at his own desk in early December.
Architect of the internment of Japanese Americans
Immediately following the Japanese attack on Pearl Harbor on December 7, 1941, the Federal Bureau of Investigation arrested approximately 5,500 leaders in the Japanese American communities in Alaska, Washington, Oregon, California, and Hawaii. While the government was worried that these leaders had been involved in anti-American activity on behalf of the Empire of Japan, eventually, all were cleared of any wrongdoing.
However, President Roosevelt signed Executive Order 9066 in early 1942, which authorized military commanders to designate "exclusion zones", "from which any or all persons may be excluded" for reasons of military security. Following that authorization, Bendetsen (he had changed his name by this time) developed a plan by which all persons of Japanese ancestry, whether foreign-born or American-born, were forcibly interned in concentration camps. He then pressured Lieutenant General John L. DeWitt to accept his plan, rather than the less-restrictive one which DeWitt had originally intended.
Initially, only southern Arizona and the western parts of Washington, Oregon and California were designated as "Military Area No. 1," and many Japanese Americans simply moved to the eastern portions of their home states, while several thousand moved to other states. Bendetsen would later call this "voluntary relocation," though the moves were done at the orders of the government. The Western Defense Command then announced that the exclusion zone would be expanded to include all of California and created "Military Area No. 2," at the same time prohibiting Japanese Americans from leaving either military area. Only those who had moved outside California escaped being rounded up and confined in makeshift "assembly centers" (often horse stalls at racetracks and fairgrounds), and then later incarceration in "relocation centers."





