Final answer:
A FragO, or Fragmentary Order, is a brief version of a full Operations Order and includes critical updates to the Situation, Mission, and Execution, with Administration and Logistics, and Command and Signal included if relevant.
Step-by-step explanation:
A FragO, or Fragmentary Order, is a condensed form of an Operations Order (Op Order) used in military contexts to issue a change or update to an existing mission plan. It is developed to provide timely guidance to subordinates when there is not enough time to prepare a full Op Order. While a full Op Order typically includes five paragraphs - Situation, Mission, Execution, Administration and Logistics, and Command and Signal - a FragO must contain the essential elements necessary to understand the adjustments or changes to the operation. These key components usually include critical updates to the Situation, detailing any changes to the enemy or friendly forces; adjustments in the Mission, outlining the unit's task and purpose given new developments; and Execution directions, describing new maneuvers or actions to be taken. Components such as Administration and Logistics, and Command and Signal, may also be included if relevant updates are necessary for the changing mission parameters.