United States Air Force Pararescue
Pararescuemen (also known as Pararescue Jumpers or PJs) are United States Air Force special operators who conduct personnel recovery and combat search and rescue operations as well as other missions for the U.S. military and its allies. PJs are generally assigned to Air Force Special Operations Command (AFSOC) and Air Combat Command (ACC).
Source: Wikipedia — United States Air Force Pararescue (CC BY-SA 4.0)