PART VI – SERVICE OFFENCES
General provisions on offences and trials
57. Persons guilty of an offence
(3) Where two or more persons form an intention in common to carry out an unlawful purpose and to, assist each other in carrying out the common purpose, each of them commits an offence and anyone who knew or ought to have known that the commission of the offence would be a probable consequence of carrying out the common purpose is party to and guilty, upon conviction by a court-martial, of that offence.
Assisting
Common purpose
Intent - national proceedings
Knowledge - national proceedings
EDIT.