U.S. Army Rangers

U.S. Army Rangers with the 75th Ranger Regiment (Airborne) throw smoke grenades to produce a smoke screen during a mock attack exercise.

Rangers are part of U.S. Army Special Operations Command (Airborne).

They are a light infantry special operations unit that specialise in parachute and helicopter-borne air assualts.

Rangers often support other special ops units such as Delta Force and Navy SEALs, acting as perimeter security, carrying out secondary attacks or by acting as a quick reaction force (QRF).