Uniform Code of Military Justice
Article 100. Principals.
(a) A person subject to this Code is guilty as a principal when that person—
(i) commits an offense punishable by this Code;
(ii) aids or abets its commission;
(iii) commands or procures its commission; or
(iv) causes an act to be performed that would constitute an offense if directly performed by that person.
(b) Mere presence at the scene of an offense, knowledge of an offense, or association with an offender does not by itself establish liability as a principal.
(c) A person guilty under this Article shall be punished as a court-martial may direct.