It was August 6, 2011 when a CH-47 Chinook, call sign Extortion 17 (One Seven) was shot down in the Tangi Valley of Afghanistan. It would go down as the deadliest day in the War on Terror. 30 American service members and one military working dog died in a crash resulting from the helicopter being struck by a rocket propelled grenade. All proceeds from this shirt will go to the 31Heroes Project to help fund the treatment of TBI/PTSD. The names of each service member who died are in the stripes of the American flag on the back. We Shall Never Forget Their Eternal Sacrifice.