Final answer:
General Order 9 specifies that a sentry must remain vigilant during the confusion and excitement that accompanies a fire.
Step-by-step explanation:
The general order that states you should remain vigilant even amid the confusion and excitement that accompanies a fire is General Order 9. This is one of the eleven General Orders of a Sentry, which every member of the armed forces is expected to know and follow. The main purpose of this order is to maintain a high level of alertness and ensure the security of the assigned post even during chaotic situations such as a fire. Soldiers are expected to understand and adhere to this order to maintain discipline and effectiveness regardless of the circumstances they might face.