Article 87 of the Uniform Code of Military Justice punishes a service member who, through neglect or design, misses the movement of a ship, aircraft, or unit with which the member is required in the course of duty to move. The word “movement” sits at the center of the offense, and it is frequently misread as if it referred to a particular vehicle. It does not. Understanding which transportation is covered, and which is not, requires separating the thing that moves from the way the member happens to travel.
The Statute Focuses on Ship, Aircraft, or Unit
The text of Article 87 ties the offense to three things: a ship, an aircraft, or a unit. To convict, the government generally must prove that the accused was required, in the course of duty, to move with one of those; that the accused knew of the prospective movement; and that the accused missed it through design or neglect. The covered “movement,” then, is the scheduled relocation of that ship, aircraft, or unit. The offense protects the integrity of organized military movements, which is why the statute names these three categories rather than listing modes of travel.
Mode of Travel Is Usually Not the Point
A common misconception is that Article 87 covers only sea or air travel because it names ships and aircraft. That reading misses the third category, the unit, and it confuses the means of travel with the object that is moving. When the requirement is to move with a unit, the exact method of transportation is generally less important. A unit movement may be carried out by military or commercial means and may involve travel by ship, train, aircraft, truck, bus, or even on foot. What matters is that the member was required to move with the unit and failed to do so. The vehicle is incidental; the unit’s movement is the protected event.
Ships and Aircraft as the Moving Object
When the charge involves a ship or an aircraft rather than a unit, those vessels and craft are themselves the thing being moved, and the terms refer to officially designated military conveyances scheduled to move under competent orders. A sailor required to sail with a particular ship who is not aboard when it gets underway has missed that ship’s movement. An airman required to deploy aboard a designated aircraft who fails to be present for its departure has missed that aircraft’s movement. In these situations the conveyance and the movement coincide, which is why the article names ships and aircraft directly alongside units.
The Substantiality Requirement
Not every relocation counts. The Manual for Court-Martial describes a military movement as a move, transfer, or shift of a ship, aircraft, or unit that involves a substantial distance and a substantial period of time. This substantiality requirement screens out trivial repositioning. Moving a vehicle a short distance across a base, or a brief routine shift, is not the kind of “movement” the article was written to protect. The covered movement is a meaningful operational relocation, and the substantiality of distance and time helps separate genuine movements from minor administrative shuffling.
How the Member Travels Versus What the Member Misses
Because the analysis centers on the ship, aircraft, or unit, the practical question is what the member was required to move with, not how the member would have gotten there. A soldier ordered to deploy with a unit might have been scheduled to ride a bus to an aerial port, then board an aircraft. If the soldier intentionally or negligently fails to make the unit’s movement, the offense concerns the unit’s relocation, even though the soldier’s own leg of travel might have been by bus or on foot. This is the sense in which Article 87 reaches a wide range of transportation: any mode can be part of accomplishing a unit movement, so missing that movement is chargeable regardless of the mode involved.
What Falls Outside Article 87
Equally important is what is not covered. Missing ordinary individual travel that is not the movement of a designated ship, aircraft, or unit does not fit Article 87. A member who is simply late for a routine appointment, or who fails to catch personal transportation unconnected to a unit, ship, or aircraft movement, has not committed this offense, although other articles might apply. The transportation must be linked to the relocation of one of the three named objects, and the movement must meet the substantiality threshold. Without that link, the conduct, whatever else it may be, is not missing movement.
The Practical Takeaway
The transportation “covered under movement” in Article 87 is best understood by looking past the vehicle to the object being moved. The statute reaches the scheduled movement of a ship, an aircraft, or a unit, provided that movement involves a substantial distance and time. When a unit is involved, virtually any mode of conveyance, by sea, air, rail, road, or on foot, can be part of that movement, so the choice of vehicle does not narrow the offense. When a ship or aircraft is involved, that conveyance is itself the moving object. The defining feature is always the same: the member was required in the course of duty to move with the ship, aircraft, or unit, and the member missed that movement through neglect or design.
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.