Based on the 2009 non-fiction book Horse Soldiers written by Doug Stanton, 12 Strong is a fairly typical war movie whose main strength is telling a fascinating true story about one of the first military operations in Afghanistan following the September 11th attacks. It follows a group of twelve United States Army Special Forces soldiers who are sent to Afghanistan on a covert mission known as Task Force Dagger in October 2001 to combat the Taliban harboring the al-Qaeda terrorist group responsible for the deadliest attack on American soil. The group known as Operational Detachment Alpha 595 within the elite 5th Special Forces Group are commanded by Captain Mitch Nelson, played by Chris Hemsworth, on his first leadership role in combat and is tasked with joining Afghan General Abdul Rashid Dostum and his Northern Alliance fighters. Their mission is to recapture the Taliban stronghold of Mazar-i-Sharif, a Northern Afghan city strategically vital to the Americans in the forthcoming war, and eliminate Taliban and al-Qaeda soldiers in the region. Once they arrive in Afghanistan, the American troops, including soldiers played by Oscar nominee Michael Shannon and Michael Peña, discover they are outnumbered by the Taliban heavily armored with tanks and rocket launchers. Earning their nickname the Horse Soldiers, the men are surprised to learn they must ride horses into combat due to the rough terrain. As to be expected from a Jerry Bruckheimer production, the film contains several well-coordinated and thrilling action sequences involving the Special Forces on horseback firing machine guns at the relentless Taliban and al-Qaeda forces. Overall, despite the talented cast and spectacular scenes of modern warfare, the movie never transcends the generic formula of an action flick as a result of the lack of character development and the bloated runtime. Unfortunately, it does not really do justice to the truly remarkable story of one of the first military responses to the terrorist attacks of September 11, 2001, an operation that up until recently was classified.