

Marines from 1st Battalion, 4th Marines, conduct a night assault on targets at Al Qatrana, Jordan, during the Infinite Moonlight exercise in 1998.
A US soldier of 2-12 Infantry 4BCT-4ID Task Force Mountain Warrior takes a break during a night mission near Honaker Miracle camp at the Pesh valley of Kunar Province, Afghanistan on Aug. 12, 2009.
A soldier from the US Army's 1st Platoon, Alpha Troop, 2-1 Infantry Battalion, 5/2 Striker Brigade Combat Team scans the area with a scope during a night observation mission in the Arghandab River Valley in Kandahar Province on April 15.
Seen through a night-vision device, US Army Cpl. Shaun Armstrong secures a landing zone during an air assault mission during Operation Champion Sword in Khost province, Afghanistan, on Aug. 2, 2009.
US Army soldiers of B Company, 3rd Battalion 82nd Combat Aviation Brigade hold a mission briefing on board their CH-47 helicopter as they ready for a night mission at Kandahar Airfield, Afghanistan, on Sept. 1, 2009.
Seen through night-vision optics, US Army Special Operations Forces interrogate the son of a suspected al-Qaida cell leader during a raid on his compound, on Sept. 4, 2002, in the village of Ayul-Kheil outside of Khost, 90 miles southeast of Kabul.
Brazilian-born US marine Corporal Felipe Carvalho Barbosa, from High Point, N.C., talks with a comrande as he checks a light on his weapon before leaving for a night foot patrol in Fallujah, Iraq, in Dec. 2005.
During a nighttime medevac mission over Marjah, Afghanistan, US Army 82nd Airborne's All American Dustoff flight medic Sgt. John Collier attends to his patient, an Afghan interpreter on March 6. The crews of Pegasus med and chase birds fly together on missions, 24 hours a day, seven days a week, providing fast medical evacuation to wounded combatants and civilians from often hostile situations in Afghanistan.
Sgt. Jeff Grothause, 10th Mountain Division, 1st Battalion, 87th Infantry Regiment, prepares for a live-fire drill conducted in darkness at Fort Drum, New York. Technology allows soldiers to operate in the night, giving them a critical advantage.
A US Army soldier guards a detainee during an air assault mission during Operation Champion Sword in Khost province, Afghanistan, Aug. 2, 2009.
U.S. Marines from the 2nd MEB, 1st Battalion 5th Marines board helicopters at Camp Leatherneck for a night air assault in Afghanistan's Helmand province on July 2, 2009.
A combat photographer with Command Element, 11th Marine Expeditionary Unit (Special Operations Capable), photographs Marines from the 1st Battalion, 4th Marine Regiment, 11th MEU as they respond to a night ambush set by insurgents in An Najaf, Iraq, on Aug. 8, 2004.
Airman 1st Class Justin Cole, Tech. Sgt. Marcus Cottengim and Chief Master Sgt. Roy Cupper conduct a pre-flight inspection on an MQ-1 Predator unmanned aerial vehicle prior to a night mission from Ali Air Base, in Iraq on Nov. 5, 2007.