"Friendly fire" refers to incidents in military operations where soldiers accidentally harm their own forces instead of the enemy. This can occur due to miscommunication, misidentification, or mistakes in targeting. Such incidents can lead to unintended casualties and have significant psychological and operational impacts on military units. The term is not limited to the military; it can also apply in sports or video games, where players inadvertently affect their teammates. In these contexts, friendly fire can lead to frustration and confusion, emphasizing the importance of teamwork and clear communication to avoid such mishaps.