To prevent the injured from **suffocating**, it is important to place them in a **recovery position**. This position is crucial when the injured person is **unconscious** and does not respond or move, as in this state it is necessary to check if they are breathing. If not acted upon properly, there is a risk that the tongue or fluids may block the airways, causing suffocation.

Additionally, when assisting an injured person, it is essential **not to move them** unless it is absolutely necessary for their safety. If it is required to move them, it should be done carefully, keeping the **head, neck, and body aligned** to avoid further injuries. This is done to protect the neck from sudden movements and ensure that the airways remain clear.

Therefore, placing an injured person in a recovery position is an essential preventive measure to ensure they can **breathe properly** and do not suffocate.