A more thorough explanation:

The Code of Military Justice is a set of rules that govern the behavior and discipline of members of the armed forces. It includes both substantive rules, which define what actions are considered offenses, and procedural rules, which outline how those offenses are investigated and punished.

For example, the Code of Military Justice might specify that disobeying a direct order from a superior officer is a punishable offense. It would also outline the steps that must be taken to investigate and punish such an offense, including the right to a fair trial and the possibility of imprisonment or other disciplinary action.

Another example of an offense under the Code of Military Justice might be desertion, or abandoning one's post without permission. This offense is taken very seriously in the military, as it can put the lives of other soldiers at risk. The Code of Military Justice would outline the steps that must be taken to investigate and punish such an offense, including the possibility of a court-martial and a dishonorable discharge.

Overall, the Code of Military Justice is an important tool for maintaining discipline and order within the armed forces. It ensures that all members are held to a high standard of behavior and that those who violate that standard are held accountable for their actions.