CAAF Opinion Digest · III.B.15 · Defenses

Necessity

At the court
3 digested opinions, 1999–2002 Terms
2002
United States v. Washington, 57 M.J. 394 · decided Sep 30, 2002 · No. 01-0658/AF
  1. necessity was traditionally seen as a choice of evils defense in which the pressure of circumstances was not brought by human agency, but by the situation itself; and the defendant’s belief that his actions were necessary must have been reasonable, and there must have been no alternative that would have caused lesser harm
  2. if the defense of necessity applies in the military justice system -- a question which the Court of Appeals for the Armed Forces did not resolve at this time – it must be interpreted in conjunction with the guidance on disobedience of lawful orders and the essential purposes of military law and would call for an application of the prevailing civilian doctrine regarding the requirement for the necessity to arise from a natural force, as opposed to a human action
  3. there may indeed be unusual situations in which an assigned military duty is so mundane, and the threat of death or grievous bodily harm so clearly defined and immediate, that consideration might be given to a duress or necessity defense; that is not the case where the anthrax vaccination program was designed and implemented as a defensive measure in the face of a significant military threat
1999
United States v. Olinger, 50 M.J. 365 · decided May 26, 1999 · No. 98-0095/NA
  1. where appellant’s guilty plea was otherwise provident, Court declined to determine whether common-law defense of necessity should be applicable to courts-martial
United States v. Rockwood, 52 M.J. 98 · decided Sep 30, 1999 · No. 98-0488/AR
  1. necessity is a “choice of evils” defense, brought about by the situation itself, where the belief that the action was necessary is reasonable, and there must have been no alternative that would have caused lesser harm
  2. the Manual has no provision specifically establishing “necessity” as a defense, nor is there a standard instruction denominated “necessity”
  3. military judge’s instruction, which blended elements of duress to the circumstances of appellant’s conduct and included elements of necessity, comported well with general civilian criminal law, and expressed an objective standard common to both duress and necessity
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Last updated by the court: Oct 13, 2026 · mirrored Oct 29, 2026 · digest page IIIB15 · Always confirm a holding against the opinion itself (linked from each case name).