What should a leader do after issuing a warning order?

After issuing a warning order, a leader should proceed to issue an operation order. The warning order serves as an initial notification to the team that an operation is forthcoming and outlines instructions to prepare for the upcoming task. The operation order provides detailed guidance on the mission, including objectives, resources, timelines, and responsibilities.

Moving directly from the warning order to the operation order keeps the team informed and ready, ensuring they have all necessary information to execute the mission effectively. An operation order builds upon the framework established by the warning order, clarifying expectations and defining the operational picture, which is crucial for efficient execution and coordination among team members.

The other options do not align with the logical progression of planning. Cancelling the mission entirely would negate the purpose of the warning order, which is to signal preparatory actions rather than to withdraw them. Selecting a new team member could be part of the overall mission planning but is not the immediate action that follows a warning order. Making changes to the previous order may occur later in the planning process but also diverges from the standard procedure following a warning order. Thus, issuing an operation order is the most appropriate and effective step for the leader to take.