What does a frag order primarily communicate to the units involved?

A frag order, or fragmentary order, is a crucial component in military operations as it provides specific instructions that clarify and expand upon the initial planning directives. The primary purpose of a frag order is to communicate mission details and directives to the units involved in the operation. This includes alterations to the existing plan, specific tasks for subordinate units, and often updates on the situation that impact the mission execution.

By concentrating on mission details, a frag order ensures that all units are aligned and equipped with the most current information necessary to achieve the operation’s objectives. While rules of engagement, logistical support requirements, and summaries of objectives are critical aspects of military operations, they are not the central focus of a frag order. Instead, the frag order's emphasis on mission specifics allows for a quicker and more effective response in dynamic operational environments.