10 U.S.C. § 877
Art. 77. Principals
Any person punishable under this chapter who—
(1)
commits an offense punishable by this chapter, or aids, abets, counsels, commands, or procures its commission; or
(2)
causes an act to be done which if directly performed by him would be punishable by this chapter;
is a principal.
( Aug. 10, 1956, ch. 1041 , 70A Stat. 65 .)