Which agency works in cooperation with the Air Force for emergency management training?

The agency that works in cooperation with the Air Force for emergency management training is the Federal Emergency Management Agency (FEMA). This agency plays a crucial role in coordinating the federal government's response to natural and man-made disasters. FEMA collaborates with the Air Force and other military branches to provide training programs that enhance preparedness, response, recovery, and mitigation strategies in emergency management. This partnership is essential for integrating military capabilities with federal disaster response efforts, ensuring a comprehensive approach to managing emergencies.

In the context of this question, while the Defense Threat Reduction Agency (DTRA) focuses on countering weapons of mass destruction and mitigating threats, it does not specifically target emergency management training in the broader sense that FEMA does. NASA and the Department of Homeland Security (DHS) also have their respective areas of focus—NASA primarily deals with aeronautics and space exploration, and DHS focuses on protecting the homeland from various threats—but neither is as directly involved in emergency management training as FEMA is. Thus, the correct answer highlights the key role FEMA plays in supporting the Air Force's emergency management training initiatives.