The deadliest single-incident loss of American lives in the war in Afghanistan
In short: On August 6, 2011, a U.S. Chinook helicopter was struck by a rocket-propelled grenade in the Tangi Valley. The crash killed 30 people, including 17 Navy SEALs. It remains a haunting case study in high-risk special operations and the enduring mysteries of battlefield intelligence.
The mission targeted Qari Tahir, a senior Taliban leader believed to be in the Tangi Valley. To reach the compound, a platoon of 47 U.S. Army Rangers was inserted via two CH-47D transport helicopters. While the Rangers were offloaded, a second helicopter—call sign Extortion 17—was tasked with transporting a reserve team of 33 personnel, including 17 Navy SEALs, to provide immediate reaction support. The operation was deemed high-risk, supported by AH-64 Apache helicopters and an AC-130 gunship.
The tactical situation shifted rapidly when ISR aircraft observed a group of Taliban fighters fleeing the compound. To engage them, the Apache support helicopters were diverted to track the fleeing men, leaving the inbound Extortion 17 without overhead fire support or surveillance. At approximately 02:38, while the helicopter was descending to a low altitude of 100–150 feet and slowing to 50 knots, it was struck by two or three RPG rounds from a previously undetected group of fighters in a two-story building. The explosion destroyed the aft rotor assembly, causing the aircraft to crash in less than five seconds.
The incident sparked intense debate over intelligence failures. While official reports from U.S. Central Command suggest the Taliban scored a 'lucky shot' without knowing the flight path, other reports allege a sophisticated trap. Some accounts suggest Qari Tahir may have fed the U.S. false information about a meeting to lure forces into a valley where the Taliban had pre-positioned weapons on both sides. Despite these theories, the loss remains the greatest single-incident loss of life for the U.S. Special Operations community in its 37-year history.
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- Summary by Intellect · source: Extortion 17 shootdown
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