Which of the following is NOT one of the five paragraphs of an operation order?

In an operation order (OPORD), the structure typically consists of five main paragraphs: Situation, Mission, Execution, Sustainment, and Command and Signal. Each of these paragraphs serves a specific purpose in conveying essential operational information.

The "Conclusion" is not recognized as one of the five standard paragraphs in an OPORD. Therefore, identifying this as the answer demonstrates an understanding of the format and content expected in military operation orders. Recognizing this helps in effectively preparing and executing mission planning, as each correct paragraph has distinct duties and clarifies the command's intent and operational considerations.