Any service member who unlawfully enters the real property of another person, or the personal property of that person, (a structure used for storage or as a habitation), can be charged with a violation of Article 134 (paragraph 111) of the UCMJ. The accused can be punished by convening a court martial.
Article 134 does not mention unlawful entry, though there are indirect references, which also extend to all the other offenses covered under Article 134. The text of statute in Article 134 says that all neglects and disorders against the discipline and good order in the armed forces, all conduct which can bring discredit to the armed forces, and all offenses and crimes not capital, can be punished through a court martial.
Entering a property becomes unlawful, if the accused enters the property without receiving the consent of a person authorized to give consent or without authorization from other lawful authority. It is not necessary to show that the accused had broken into the property or had any such intent, to prove this offense.
But there must be an entry before the offense can be effected. The entry of any body part, even a finger is sufficient. If the accused has inserted a tool or any instrument into the property, even that can be taken as entry, unless the tool or the instrument was inserted into the property to facilitate entry or break in.
Both real property and personal property, i.e. a structure normally used for storage or habitation, are included in property which come under the ambit of unlawful entry.
Unlawful entry is different from burglary and house breaking. Burglary and house breaking both have criminal intent, which is lacking in unlawful entry. So a service member who unlawfully enters a barracks with the intention of finding a place to sleep for the night, is guilty of unlawful entry and not burglary or house breaking. Another main difference is the jail time. An accused who is held guilty of burglary, housebreaking or unlawful entry can be jailed for 10 years, 5 years and 6 months, respectively.
If a service member is found guilty of unlawful entry at a court martial, he can be punished with a bad conduct discharge, forfeiture of allowances and pay and 6 months of confinement.