Final answer:
The unit leader briefs their subordinates before an order is given.
Step-by-step explanation:
Prior to an order, the unit leader briefs their subordinates to the planned area of operation.
Briefing is an important step in military operations as it ensures that all members of the unit are knowledgeable about the objective, plan, and any other relevant information.
During a briefing, the unit leader communicates important details, such as the mission objective, the roles and responsibilities of each member, the timeline, and any specific instructions or tactics to be employed.