What role did the military play in the decision of korematsu v. United States

The U. S. military's argued that the loyalties of some Japanese Americans resided not with the United States but with their ancestral country, and that because separating "the disloyal from the loyal" was a logistical impossibility, the internment order had to apply to all Japanese Americans within the restricted area. The Supreme Court Accepted the military's argument over the argument of Korematsu.