Nellis conducts combat exercise

Staff Sggt. Coby,left and Senior Airman Brennan (could not give last names,) ground controllers from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl., stand Wednesday, May 23, 2012, near a desert landing strip while a C-17 Globemaster lands at the Nevada Test and Training Range. Nellis conducted the Mobility Air Force exercise involving Air Force and Army paratroopers who were dropped with supplies. (Jeff Scheid/Las Vegas Review-Journal)

Soldiers from the 18th Airborne Corp Long Range Surveillance Company protect themselves Wednesday, May 23, 2012, while a C-17 Globemaster takes of from a dirt landing strip at the Nevada Test and Training Range. Nellis U.S. Air Force Weapons School conducted its Mobility Forces Exercise involving Air Force and Army paratroopers who were dropped with supplies. (Jeff Scheid/Las Vegas Review-Journal)

An A-10 Thunderbolt Warthhog drops flares Wednesday, May 23, 2012, at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Senior Airman Brennan (could not give last name,) a ground controller from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl. watch a fleet of C-130 transport planes line up over a drop zone Wednesday, May 23, 2012, at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Senior Airman Kyle, left, and Staff Sggt. Coby, (could not give last name,) ground controllers from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl. watch a C-17 Globemaster while it flies over the drop zone Wednesday, May 24, 2012 at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

A C-130 transport plane flies near paratroopers Wednesday, May 23, 2012, at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

A paratrooper prepares to land Wednesday, May 24, 2012 at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

A soldier tries to control his parachute Wednesday, May 23, 2012, after he landed at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Senior Airman Kyle, (could not give last name,) ground controller from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl. stand near the drop zone Wednesday, May 24, 2012 at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Senior Airman Kyle (could not give last name,) a ground controller from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl. stands on a dirt air field Wednesday, May 23, 2012, at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

A soldier from the 18th Airborne Corp Long Range Surveillance Company unit holds his M-4 Wednesday, May 23, 2012, at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Soldiers from the 18th Airborne Corp Long Range Surveillance Company load on a C-17 Globemaster Wednesday, May, 23,2012 at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Military officers from left, Air Force Lt. Col. Matt Lengel, Army Sgt. Maj. Travis Votaw and Army Lt. Col. Eric Criter sit Wednesday, May, 23,2012 in a C-17 Globemaster transport plane during take off from Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

Air Force Sggt. Michael Wheeler, right, and soldiers from the 18th Airborne Corp Long Range Surveillance Company sit in a C-17 Globemaster Wednesday, May, 23,2012 while flying back to Nellis Air Force Base. (Jeff Scheid/Las Vegas Review-Journal)

A vertebrae lays in the back of a utility vehicle while its being unloaded off a C-17 Globemaster Transport Wednesday, May, 23,2012 after landing at Nellis Air Force Base. Soldiers from the 18th Airborne Corp Long Range Surveillance Company, who were involve in the Mobility Forces Exercise, found the bone. (Jeff Scheid/Las Vegas Review-Journal)

Senior Airman Kyle, left, and Staff Sggt. Coby, (could not give last name,) ground controllers from the 23rd Special Tactical Squadron out of Hurlburt Air Force Base, Fl. walk on a dirt landing field Wednesday, May 24, 2012 at the Nevada Test and Training Range. (Jeff Scheid/Las Vegas Review-Journal)

The U.S. Air Force Weapons School conducted its Mobility Forces Exercise, May 23, 2012 at Nevada Test and Training Range, about 200 miles north of Las Vegas.
Nearly 70 aircraft, includeding C-17 Globemaster III, C-130 Hercules and A-10 Thunderbolt Warthhog aircraft, simulated a "forced entry" operation, in which airplanes attack an enemy airfield then dropped paratrooper and supplies on the ground.