A U.S. Army soldier stands guard from atop a tower at maximum security prison Camp Delta at Guantanamo Naval Base, August 25, 2004 in Guantanamo, Cuba. Australian al Qaeda suspect David Hicks sat stoically before a U.S. military tribunal that formally charged him with war crimes on Wednesday and showed no emotion as his lawyers questioned the panel's ability to try him fairly. Hicks, a 29-year-old convert to Islam, is among the first four suspected al Qaeda fighters held at the remote U.S. naval base to face criminal charges of plotting attacks against America and its allies. The four are appearing before a military tribunal this week for pretrial hearings. REUTERS/Mark Wilson/POOL mw/jf/HB