Service members often hear two different labels for what sounds like the same offense. Sailors and Marines talk about being UA, while soldiers and airmen talk about being AWOL. The natural question is whether these describe different crimes with different consequences. They do not. Both terms point to the same underlying offense under Article 86 of the Uniform Code of Military Justice. The difference is one of vocabulary and service culture, not of law.
Same statute, different name
Article 86 of the Uniform Code of Military Justice, 10 U.S.C. 886, criminalizes unauthorized absence in its various forms. The Code applies uniformly across all the armed forces, so a sailor, a Marine, a soldier, and an airman are all governed by the identical statutory text. What varies is the term each service uses.
In the Army and the Air Force, the offense is commonly called absence without leave, abbreviated AWOL. In the Navy and the Marine Corps, the same conduct is called unauthorized absence, abbreviated UA. Both phrases describe a failure to be where military duty requires at the time required, without authorization. So a Marine charged with being UA and a soldier charged with being AWOL are charged under the same article, with the same elements, facing the same range of consequences. The label is essentially a matter of service tradition.
What Article 86 actually covers
Because the question is really about one offense, it helps to understand what Article 86 reaches. The article addresses several related forms of unauthorized absence rather than a single act. These commonly include failing to go to an appointed place of duty at the prescribed time, leaving that place of duty, and being absent from one’s unit, organization, or place of duty without authority and remaining away.
Each form shares a core idea: the member was required by proper authority to be somewhere, and the member was not there, without permission. Whether the service calls it UA or AWOL, the prosecution must prove that the member had a duty to be present, that the member was absent or failed to appear, and that the absence was not authorized.
Why the distinction is purely terminological
Some service members worry that being UA in the Navy might be treated more or less seriously than being AWOL in the Army, or that the two carry different definitions. That is not the case. Since both arise under the same article of the same Code, the legal elements are identical and the maximum punishments are set by the same authority. The naval services simply retained their own traditional phrasing. There is no separate naval statute creating a distinct UA offense apart from Article 86.
How severity is determined
What truly affects the outcome is not the label but the circumstances of the absence. The seriousness of an Article 86 charge, and the maximum punishment available, scales with factors such as how long the absence lasted and how it ended. A brief failure to appear at an appointed place of duty sits at the low end. A longer absence is treated more seriously, and the manner in which the absence terminated can matter as well, with a return by apprehension generally viewed more harshly than a voluntary surrender. As the duration and aggravating circumstances increase, the available punishment can rise toward confinement, forfeitures, and a punitive discharge.
It is also worth noting where Article 86 ends and other offenses begin. Unauthorized absence under Article 86 does not require any intent to stay away permanently. When the evidence shows an intent to remain away permanently or to avoid hazardous duty or important service, the conduct may instead be charged as desertion under a different article, which is a distinctly more serious offense. Likewise, failing to make a scheduled movement of a ship, aircraft, or unit can implicate the separate offense of missing movement. These distinctions, not the UA versus AWOL terminology, are what change the legal stakes.
Practical takeaways
The bottom line is straightforward. UA in the Navy and Marine Corps and AWOL in the Army and Air Force are two names for the same Article 86 offense of unauthorized absence. The service of the accused tells you which word will appear on the charge sheet, but it does not change the elements, the defenses, or the punishment framework. Anyone facing such a charge should focus on the facts that genuinely drive the result, namely whether a duty to be present existed, whether the absence was actually unauthorized, how long it lasted, how it ended, and whether the facts might support or rule out a more serious charge such as desertion. The terminology is a difference in language; Article 86 is the law that controls.
Disclaimer
This article is provided strictly for general educational and informational purposes. It is intended to explain how the Uniform Code of Military Justice (UCMJ), the Rules for Courts-Martial, the Military Rules of Evidence, and related military administrative processes work as a matter of public legal education. It does not constitute legal advice, a legal opinion, or a recommendation about any particular case, and it is not a substitute for advice from a qualified military defense attorney who can evaluate the specific facts and command, service, and jurisdictional circumstances involved.
Reading this article, or contacting any website on which it appears, does not create an attorney-client relationship between the reader and any law firm, attorney, or author. Every court-martial, nonjudicial punishment action, administrative separation, and security-clearance matter turns on its own facts, the charged articles, the convening authority, the service branch, and the evidence, and outcomes vary widely from one case to another.
Military law also changes over time. The Military Justice Act of 2016 (effective January 1, 2019) and subsequent National Defense Authorization Acts renumbered and rewrote many punitive articles, revised the Article 32 preliminary hearing, and altered sentencing, clemency, and appellate procedures. Statutes, regulations, executive orders, the Manual for Courts-Martial, and decisions of the service Courts of Criminal Appeals and the Court of Appeals for the Armed Forces may have been amended, superseded, or reinterpreted after this article was written, and article numbers or procedures cited here may have changed.
For these reasons, no reader should act or decline to act based on this content without first consulting a licensed attorney experienced in military justice about their own situation. The author and publisher make no warranty, express or implied, as to the accuracy, completeness, timeliness, or current applicability of the information provided, and disclaim any liability for any action taken or not taken in reliance on it. If you are facing investigation, charges, or an adverse administrative action, time limits may apply, and you should seek qualified counsel promptly.