* Security Forces. Security Forces personnel are responsible for protecting Air Force installations and assets, and may be required to work long hours in difficult and dangerous conditions. They may also be exposed to potentially hazardous materials or situations, and may be required to use force in order to protect themselves or others.
* Explosive Ordnance Disposal (EOD). EOD technicians are responsible for safely handling and disposing of explosives, and may often work in dangerous environments such as war zones. They may also be required to disarm improvised explosive devices (IEDs), which can be a highly stressful and dangerous job.
* Pararescue. Pararescuemen (PJs) are trained to perform search and rescue operations in challenging environments such as mountains, forests, and deserts. They may be required to jump out of airplanes, rappel down cliffs, and swim in rough waters in order to rescue people who are in distress.
* Aircrew. Aircrew members are responsible for flying aircraft and performing various other tasks in the air. They may be required to work long hours, and may be exposed to dangerous conditions such as weather and enemy fire.
* Maintenance. Maintenance personnel are responsible for keeping Air Force aircraft, vehicles, and other equipment in good working order. They may be required to work long hours, and may be exposed to hazardous materials or conditions.
It's important to note that these are just a few examples of jobs that can be challenging or difficult in the Air Force. Many other jobs in the military can also be demanding, and the specific challenges of a particular job can vary depending on the individual's circumstances.