During which phase of TCCC are you under hostile fire?

The phase of Tactical Combat Casualty Care (TCCC) during which you are under hostile fire is known as Care Under Fire. This phase occurs at the very beginning of a combat scenario when a casualty is still in the vicinity of the threat, and immediate care needs to be applied while also prioritizing the safety of the person administering aid. The focus in this phase is primarily on ensuring that the medic or caregiver can provide life-saving interventions while minimizing their own risk of being injured.

Care Under Fire emphasizes the importance of controlling the situation and utilizing cover when available, which influences the type of care that can be effectively administered. The goal is to manage the casualty's injuries to the extent possible while preparing to move to a safer environment to provide more comprehensive care.

In the other phases, such as Tactical Field Care and Combat Casualty Evacuation Care, the risk from hostile fire is significantly reduced, allowing for more in-depth assessments and procedures that would not be safe to perform under immediate threat. Immediate Response Care typically refers to initial self-aid measures or very basic aid given before formal care is initiated, but it does not specifically address the context of being under hostile fire on the battlefield as Care Under Fire does.