mobile-bannertablet-bannerdesktop-banner
A U.S. soldier waits for a CH-47 Chinook helicopter from the 82nd Combat Aviation Brigade to land after an advising mission at the Afghan National Army headquarters for the 203rd Corps in the Paktia province of Afghanistan
A U.S. soldier from the 3rd Cavalry Regiment waits for a CH-47 Chinook helicopter after an advising mission at the Afghan National Army headquarters for the 203rd Corps in the Paktia province of Afghanistan on Dec. 21, 2014.Lucas Jackson—Reuters
A U.S. soldier waits for a CH-47 Chinook helicopter from the 82nd Combat Aviation Brigade to land after an advising mission at the Afghan National Army headquarters for the 203rd Corps in the Paktia province of Afghanistan
U.S. soldiers from 3rd Cavalry Regiment flag a car to stop to be screened for explosives near forward operating base Gamberi in the Laghman province of Afghanistan
A crew member climbs into a U.S. Blackhawk helicopter before it takes off following a mission to take Brigadier General Christopher Bentley to inspect an Afghan National police installation in the Nangarhar province of Afghanistan
A U.S. soldier from the 3rd Cavalry Regiment is watched as he fires a squad automatic weapon during a training mission near forward operating base Gamberi, in the Laghman province of Afghanistan
U.S. soldiers in Dragon Company of the 3rd Cavalry Regiment watch rounds explode downrange during a mortar exercise near forward operating base Gamberi in the Laghman province of Afghanistan
A U.S. soldier from the 3rd Cavalry Regiment uses the optic on his rifle to observe Afghans in the distance, near forward operating base Gamberi, in the Laghman province of Afghanistan
U.S. soldiers from 3rd Cavalry Regiment interact with men selected to be biometrically screened near forward operating base Gamberi in the Laghman province of Afghanistan
Humvees for the Afghan National Army are lined up waiting for parts to be repaired at the Afghan National Army headquarters for the 203rd Corps in the Paktia province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment take part in a Christmas Eve celebration with soldiers from the Polish army's 21st Mountain Brigade on forward operating base Gamberi in the Laghman province of Afghanistan
U.S. soldier from the 3rd Cavalry Regiment relaxes in his quarters after taking part in a mortar exercise on forward operating base Gamberi in the Laghman province of Afghanistan
U.S. soldiers play volleyball at forward operating base Fenty in the Nangarhar province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment wait in line to get food during a Christmas day lunch at forward operating base Gamberi in the Laghman province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment greet their Afghan police counterparts during an advising mission to an Afghan police station constructed by ISAF near Jalalabad
U.S. soldiers from the 3rd Cavalry Regiment fire a 120mm mortar during an exercise on forward operating base Gamberi in the Laghman province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment listen to a translation of an advising meeting at an Afghan National Army base near forward operating base Gamberi in the Laghman province of Afghanistan
A U.S. soldier from Grim Company of the 3rd Cavalry Regiment sits in an MRAP vehicle as he prepares for an early morning mission at Forward Operating Base Fenty in the Nangarhar province of Afghanistan
A mortar flies out of a tube during a mortar exercise for U.S. soldiers in Dragon Company of the 3rd Cavalry Regiment near forward operating base Gamberi in the Laghman province of Afghanistan
Lieutenant McDonald prepares a platoon of U.S. soldiers from Grim Company of the 3rd Cavalry Regiment at Forward Operating Base Fenty in the Nangarhar province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment watch "Die Hard" projected onto an outdoor wall as part of Christmas Day celebrations on forward operating base Gamberi in the Laghman province of Afghanistan
REUTERS PICTURE HIGHLIGHT
U.S. soldiers from Grim Company of the 3rd Cavalry Regiment walk down the street near an Afghan police checkpoint during a mission near Forward Operating Base Fenty in the Nangarhar province of Afghanistan
A U.S. soldier from the 3rd Cavalry Regiment walks through an Afghan police station constructed by ISAF near Jalalabad
U.S. soldiers from the 3rd Cavalry Regiment prepare for a mission at Forward Operating Base Fenty in the Nangarhar province of Afghanistan
U.S. soldiers from the 3rd Cavalry Regiment load into a CH-47 Chinook helicopter for an advising mission to an Afghan National Army base at forward operating base Fenty in the Nangarhar province of Afghanistan
A U.S. soldier carries a backpack to a shipping container during preparations for leaving Afghanistan
A U.S. soldier from the 3rd Cavalry Regiment waits for a CH-47 Chinook helicopter after an advising mission at the Afgha
... VIEW MORE

Lucas Jackson—Reuters
1 of 25

See the U.S. Military's Last Days of Combat in Afghanistan

The United States-led coalition in Afghanistan ended its combat mission on Sunday, 13 years after it began in the wake of the Sept. 11 attacks. More than 10,000 troops will remain on the ground to aid Afghan forces in a new U.S. role that called Operation Freedom's Sentinel.

“For more than 13 years, ever since nearly 3,000 innocent lives were taken from us on 9/11, our nation has been at war in Afghanistan,” President Barack Obama said in a statement. “Now, thanks to the extraordinary sacrifices of our men and women in uniform, our combat mission in Afghanistan is ending, and the longest war in American history is coming to a responsible conclusion.”

Almost 1 million U.S. troops served at least one tour in Afghanistan; a total 3,485 allied troops were killed, including 2,356 Americans.

Reuters photographer Lucas Jackson documented the final days of the U.S.'s official combat campaign with the men and women of Forward Operating Bases Gamberi and Fenty in Laghman and Nangarhar provinces, respectively.

Read next: U.S. Ends Its War in Afghanistan

TIME may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.