9. The Department of Justice and the US Army had their own camps
The Department of Justice operated eight camps in the United States, which held for the most part non-citizens and their families. Of the roughly 5,500 Japanese rounded up by the FBI in the aftermath of Pearl Harbor, about 3,800 of them spent the war held in the camps, which were administered by INS and guarded by the US Border Patrol (the remaining 1,700 eventually went to relocation camps). They included many of the leaders of the Hawaiian Japanese community; Buddhist priests, newspaper editors and writers (Japanese language), businessmen, and leaders of community organizations. The Department of Justice camps also held interned Germans and German-Americans (about 11,000), Italians (3,000), and additional Japanese that were deported to the United States from Latin American countries, since they claimed to have come to the respective countries from the United States.
The US Army operated several detention camps as well, also housing Germans and Italians who had been in the United States when it entered the war. The Army held these Japanese, German, and Italian detainees until 1943, when it was given jurisdiction over prisoners of war being held by Americans in May of that year. The Army transferred the civilian prisoners to the Department of Justice camps and prepared their former internment camps to become prisoner of war facilities. New Mexico’s Camp Lordsburg was the only internment camp built for the purpose of housing Japanese Americans, the rest were existing facilities converted for the use. At least three Japanese Americans were killed at Lordsburg, shot by Army guards.