12 Strong (also known as 12 Strong: The Declassified True Story of the Horse Soldiers) is a 2018 American action-war film directed by Nicolai Fuglsig and written by Ted Tally and Peter Craig. The film is based on Doug Stanton's non-fiction book Horse Soldiers, which tells the story of U.S. Army Special Forces sent to Afghanistan immediately after the September 11 attacks and up to the fall of Mazar-i-Sharif. The film stars Chris Hemsworth, Michael Shannon, Michael Peña, Navid Negahban, Trevante Rhodes, Geoff Stults, Thad Luckinbill, Ben O'Toole, William Fichtner, and Rob Riggle.

Principal photography began in January 2017 in New Mexico. The film was released in the United States on January 19, 2018, by Warner Bros. Pictures, in standard and IMAX theaters. It received mixed reviews from critics, who praised the cast and action but criticized the by-the-numbers execution and lack of insight of the War in Afghanistan.

Mitch Nelson, a U.S. Army captain with Green Berets Operational Detachment Alpha (ODA) 595, is moving into a new home with his wife and daughter on September 11, 2001, after receiving an assignment to staff duty under Lieutenant Colonel Bowers. As news of the devastating terrorist attacks that day breaks, Nelson volunteers to lead 595 into Afghanistan. Bowers initially refuses, but veteran soldier CW5 Hal Spencer, previously scheduled to retire, persuades Bowers to give Nelson command of 595 again, as well as volunteering himself for the deployment. After leaving their families, 595 travels to Uzbekistan on October 7, 2001. After being briefed and evaluated by COL Mulholland, Commander of 5th Special Forces Group, Nelson and 595 are picked to fight alongside Northern Alliance leader Abdul Rashid Dostum.

ODA 595 is inserted covertly in Afghanistan aboard Boeing CH-47 Chinook flown by 160th SOAR on October 19, 2001. They land 40 miles south of Mazar-i-Sharif, the country's fourth-largest city and a longtime stronghold of the Taliban, where they meet Dostum. Six of the 12 members, led by Nelson, leave with Dostum to the mountains, while the other six remain in a fortified camp nicknamed "the Alamo" under Spencer's command. Dostum is attempting to capture the northern Afghanistan city, while battling Taliban leader Mullah Razzan, who rules local communities brutally under his version of Sharia, and has murdered several people, including Dostum's family. Although the warlord is initially skeptical of Nelson's abilities, Nelson gradually earns Dostum's respect. In one battle, however, Dostum makes a tactical error, costing several casualties. Nelson accuses Dostum of acting carelessly with the lives of his men and of withholding valuable information, while Dostum retorts that he still feels that Nelson, and the U.S. are not willing to pay the potential price of the conflict, and tells Nelson that he needs to use his heart and mind to "be a warrior" instead of a soldier. The two eventually reconcile and after splitting off a three-man element under SFC Sam Diller to strike a Taliban supply route and being joined by Spencer's half of ODA 595, continue to work together. They win several victories with Dostum's leadership and manpower and American airpower, making significant progress towards Mazar-i Sharif. When Nelson informs Dostum that another ODA, 555, has been dispatched to support Atta Muhammad, another Northern Alliance leader, who is Dostum's political rival, Dostum is furious, and his men promptly abandon 595.

Following Dostum's departure, Nelson plans to continue operating against the Taliban with his Americans and the few Afghan fighters remaining with them. Encountering a large force of Al-Qaeda and Taliban fighters and armored vehicles, ODA 595, rejoined by Diller and his element, uses air support to eliminate many of the fighters and most of the armor, but are discovered and attacked. Spencer is critically injured by a suicide bomber, and the team is about to be overrun under heavy Taliban and Al-Qaeda pressure when Dostum returns with his forces. Carrying out the U.S. Army's first cavalry charge of the 21st century, the American and Northern Alliance forces disperse the Taliban and al-Qaeda, and Dostum tracks down and kills Razzan. After Spencer is medevaced, Nelson and Dostum continue to Mazar-i-Sharif but find Atta Muhammad has beaten them there. Against expectations, Dostum leaves any differences with Muhammad to be settled the next day. Impressed by Nelson and the Americans' efforts, Dostum gives Nelson his prized riding crop and tells him that he will always consider Nelson a brother and fellow fighter, at the same time bidding him remember that Afghanistan is the graveyard of empires. Spencer ultimately survives, and all 12 soldiers of ODA 595 return home after 23 days of almost continuous fighting in Afghanistan.

On December 2, 2011, it was announced that producer Jerry Bruckheimer had taken out the script by Ted Tally and rewritten by Peter Craig with Nicolai Fuglsig attached to direct, which was bought by Walt Disney Pictures in 2009 for Bruckheimer, based on Doug Stanton's non-fiction book Horse Soldiers. On March 29, 2016, Deadline Hollywood reported that Bruckheimer had officially hired Fuglsig to make his feature film directorial debut, which would be co-financed and produced by Molly Smith, Trent Luckinbill and Thad Luckinbill through Black Label Media, along with Bruckheimer's Jerry Bruckheimer Films.

On September 30, 2016, Chris Hemsworth and Michael Shannon were cast in the film, and later on November 1, Michael Peña also joined the film. On November 3, 2016, Trevante Rhodes was cast in the film. On November 14, 2016, Austin Stowell was cast in the film to play Staff Sergeant Fred Falls, an American soldier on the elite U.S. Special Forces team. Lionsgate would handle the film's distribution. On November 15, 2016, Austin Hébert was cast to play SFC Pat Essex, the intellectual and engineer of the team, and the same day it was reported that Ben O'Toole had also been cast for an unspecified role. On November 17, 2016, Variety reported that Navid Negahban was cast to play General Abdul Rashid Dostum in the film. Elsa Pataky was revealed to be appearing in the film in December 2016, while on February 3, 2017, Deadline Hollywood reported that Rob Riggle joined the film to play Army Lieutenant Colonel Max Bowers, under whom Riggle actually served while he was a U.S. Marine Captain.

Principal photography began in early January 2017 in New Mexico. Mines near Orogrande, New Mexico, were used. Later the shooting took place in Socorro, where it ended on January 26 after eight days of filming. The film was also shot in Alamogordo, using White Sands National Monument as the shooting location. The scenes involving military encampments were filmed using 20 structures leased from AKS Military, a private manufacturer of military shelters.