An MV-22B Osprey with Marine Operational Test and Evaluation Squadron (VMX) 1 transports ordnance during an Expeditionary Advanced Base Operation (EABO) exercise to Old Highway 101 near Marine Corps Base Camp Pendleton, California, May 25, 2022. U.S. Marine Corps Photo
Military investigators began their work to determine what caused an MV-22B Osprey tiltrotor aircraft to go down in a Southern California desert on Wednesday, killing five Marines aboard, military officials said Thursday.
Officials...