Military and civilian counsel military cases is bound by Service rules of professional responsibility as well as their bar. The military RPC are based on the ABA Model Rules. Thus, ABA interpretations can be meaningful and helpful.
What do you do with the client file when the case is over?
This past July, the ABA Standing Committee on Ethics and Professional Responsibility issued Formal Opinion 471 Ethical Obligations of Lawyer to Surrender Papers and Property to which Former Client is Entitled