What action should be taken according to the fifth standard firefighting order?

The fifth standard firefighting order emphasizes the importance of ensuring safety by posting lookouts when there is a potential for danger. This action is critical as it helps to maintain situational awareness and provides an additional layer of safety for firefighters by being able to anticipate hazards and potential changes in the fire's behavior. Lookouts can observe conditions that may not be in direct view of the firefighting team, enabling them to alert the crew to any looming threats, such as sudden shifts in wind or approaching hazards. By implementing this practice, firefighting operations can proceed more safely and effectively, ultimately reducing the risk of injury or loss of life among personnel in high-risk environments.