Korematsu v. United States · ¶69

It would be impracticable and dangerous idealism to expect or insist that each specific military command in an area of probable operations will conform to conventional tests of constitutionality. When an area is so beset that it must be put under military control at all, the paramount consideration is that its measures be successful, rather than legal. The armed services must protect a society, not merely its Constitution. The very essence of the military job is to marshal physical force, to remove every obstacle to its effectiveness, to give it every strategic advantage. Defense measures will not, and often should not, be held within the limits that bind civil authority in peace. No court can require such a commander in such circumstances to act as a reasonable man; he may be unreasonably cautious and exacting. Perhaps he should be. But a commander in temporarily focusing the life of a…

U. S. Reports, bound volume
U. S. Reports, volume 323, at 214 (Library of Congress) · transcription: Caselaw Access Project
Passage preview. Read in context for the complete text, notes and references.