The retired soldier is accused of stealing a Humvee from a Fort Stewart motor pool and crashing it into the 3rd Infantry Division headquarters building.
Watchdog American Oversight is suing for documents it believes could illustrate the full scope of white supremacist activity and ideology among troops.
Foreign ministers will meet in Bucharest, where, 14 years ago, the alliance decided to allow Ukraine and Georgia to join over vehement Russian objections.