What type of carry involves two people working together to move a casualty?

The two-person drag is designed for situations where a casualty needs to be moved efficiently and safely by two individuals working in coordination. This technique allows both individuals to share the physical burden of moving the injured person, which can be vital in a tactical or combat environment where time and safety are critical. By using this method, the risk of injury to the operators is minimized, and the casualty can be moved more quickly to a safer area for further medical care.

The other methods listed are more appropriate for single-person carries or specific scenarios that might not utilize teamwork to the same extent. Understanding the dynamics of collaboration in casualty evacuation can significantly impact the outcome in emergency situations.