Appointing Authority for the Office of Military Commissions John Altenburg Jr. conducts a Pentagon briefing. Appointing Authority for the Office of Military Commissions John Altenburg Jr. conducts a Pentagon briefing on Aug. 17, 2004, on the upcoming preliminary hearings for military commissions. The preliminary hearings will convene next week at Guantanamo Bay, Cuba. The commissions will try individuals accused of violations of the law of war. SHARE IMAGE: Download Image: Full Size (0.02 MB) Photo By: VIRIN: 052918-C-RFK85-538.jpg Photo Gallery