Congress will hear eagerly awaited testimony Wednesday on the Benghazi, Libya, terrorist attack from a special operations task force commander who is set to retire the next day.

Col. George Bristol, the former commander of a task force that operated in Northern and Western Africa, will appear at a classified, members-only briefing with a House Armed Services subcommittee, congressional and Defense sources told The Hill.
Republicans have been pressing the military to allow Bristol to testify.

They argue he has a unique perspective, given their concerns that the military wasn’t prepared to respond quickly to the Sept. 11, 2012, terrorist attack on the U.S. diplomatic annex that left four dead, including Ambassador Christopher Stevens.