A Special Forces soldier killed April 8 in Afghanistan has been identified as Staff Sgt. Mark De Alencar, according to a Defense Department release. De Alencar, 37, died of injuries from enemy small arms fire while his unit was conducting counter-ISIS operations in Nangarhar Province. A weapons sergeant, he was assigned to 1st Battalion, 7th Special Forces Group, based at Eglin Air Force Base, Florida. Alencar, whose father is an Army veteran, enlisted in 2009 and graduated from the Special Forces Qualification Course in 2016.