Enlarge AP Omar Khadr is shown in an interrogation room at the Guatanamo U.S. Naval Base prison in 2003 while being questioned by members of the Canadian Security Intelligence Service. WASHINGTON (AP)  The Bush administration is telling a federal appeals court that it has the authority to detain a Canadian who was captured in Afghanistan when he was 15 and is accused of killing a U.S. soldier. Attorneys for Omar Khadr, who is being held at the U.S. military prison in Guantanamo Bay, say international law bars governments from detaining people that young as enemy combatants or prosecuting them for war crimes. The government, in a filing Friday with the U.S. Court of Appeals for the District of Columbia Circuit, says the military has the authority on the battlefield to capture and detain anyone, including juveniles, who attack and kill U.S. soldiers. The court will hear arguments in the case on Sept. 4. Copyright 2008 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Guidelines: You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. Read more