The terrorist network has lost eight of its top leaders in recent years. But it has more total fighters than it did on Sept. 11, 2001.
If approved, Lt. Gen. Michael E. Langley would become the first Black four-star Marine Corps officer.
The inquiry also found shortcomings in the sharing of intelligence before the deadly assault by the Shabab in 2020.
The suicide bombing killed as many as 170 civilians and 13 U.S. troops in the final days of U.S. military involvement in Afghanistan.