Block leave is a stretch of time, often tied to holidays or the period after a deployment or major training event, when a command authorizes large portions of a unit to take leave together. It is leave, not liberty, and it is governed by the same leave rules that apply at any other time. The fact that an absence overlaps a block leave window does not change the basic legal question: was the member where the member was required to be, when required, with proper authorization. Understanding how unauthorized absence is treated during block leave starts with understanding what block leave actually authorizes.
Block leave is authorized leave with a defined end
When a member takes leave during a block leave period, that leave is charged and has a specific return date and time. The member is expected to sign back in or report at the prescribed time. Block leave does not suspend accountability. It is simply a coordinated way of scheduling leave so that a large group is away at once and the unit can stand down. Because it has a fixed end point, failing to return on time is treated like any other failure to return from authorized leave.
The governing offense: Article 86
Unauthorized absence is charged under Article 86 of the Uniform Code of Military Justice. Article 86 covers several forms of absence, including failure to go to an appointed place of duty, leaving the place of duty without authority, and absence without leave from the unit, organization, or place of duty. In the Army and Air Force this is commonly called AWOL, while the Navy and Marine Corps refer to it as unauthorized absence. The article is a catch-all for cases where a member is, through the member’s own fault, not where required at the prescribed time.
In the block leave context, the most common theory is failure to return at the expiration of leave. When the authorized leave ends, the member is again required to be present. Staying away beyond that point without authority begins an unauthorized absence that runs until the absence is terminated.
The knowledge and fault requirements
Article 86 includes a fault and knowledge component. The government must show that the member, through the member’s own fault, was absent without authority. For a failure to return from leave, that generally means the member knew when the leave ended and the duty to return, and failed to return without authorization.
This matters because absences caused without the member’s fault are treated differently. The law recognizes that a member on authorized leave who, through no fault of their own, is unable to return at the expiration of leave has not committed unauthorized absence. A canceled flight, a documented medical emergency, a natural disaster blocking travel, or similar circumstances beyond the member’s control can negate the fault element. The defense often centers on whether the failure to return was truly the member’s fault or the product of circumstances the member could not control. Members who hit a genuine obstacle are generally expected to notify a military authority and document the cause as soon as possible.
How the absence is counted and terminated
The length of an unauthorized absence affects its seriousness. Article 86 treats longer absences and certain aggravating circumstances as more serious. An absence terminates when the member returns to military control. That can occur by reporting back to the unit or by surrendering to any military authority, which means presenting oneself, making the absence known, and submitting to military control. The date and time the absence begins and ends are usually carefully documented, because they drive both the charge and the potential punishment.
Block leave can create proof questions because many members are away at the same time and unit administrative tracking can be strained. Defense counsel sometimes scrutinizes the accountability records to test whether the command can actually prove the start and end of the claimed absence and whether leave paperwork supports the dates alleged.
Block leave does not become a longer absence theory by itself
A point worth emphasizing is that being absent during a block leave period does not, on its own, convert ordinary lateness into a more serious offense. The conduct is judged by the same Article 86 standards as any other absence. What can elevate seriousness is the duration of the absence or aggravating features recognized under the article, not merely the calendar coincidence with block leave. The block leave label describes when the leave occurred, not a separate category of crime.
Consequences and command discretion
Commands have a range of responses to unauthorized absence connected to block leave. A brief, explainable late return is frequently handled with counseling or nonjudicial punishment. Longer or repeated absences, or those with aggravating circumstances, can lead to court-martial charges. Commanders weigh the length of the absence, the reason offered, the member’s record, and whether the member returned voluntarily. A member who returns on their own and can document a legitimate obstacle is in a very different position from one who stays away for an extended period without explanation.
The bottom line
The military treats unauthorized absence during block leave the same way it treats any failure to be present from authorized leave: under Article 86, focusing on whether the member was absent without authority through the member’s own fault, how long the absence lasted, and when it was terminated. Block leave does not change those rules. A genuine, documented inability to return that is not the member’s fault is a recognized defense. Anyone facing an unauthorized absence allegation arising from block leave should consult a qualified military defense attorney to evaluate the fault, knowledge, and duration questions that will decide the case.
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.
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