Human Rights Watch and partner organizations write to Prime Minister Harper ahead of the February 4 appearance before a military commission of Omar Khadr, detained at Guantanamo Bay, Cuba since he was 15 years old. Consistent with its commitment to the rule of law, international juvenile justice standards, and the rehabilitation of former child soldiers, Canada should formally request that unless the US government will prosecute Khadr in accordance with international juvenile justice and fair trial standards, the United States should promptly release Khadr and repatriate him to Canada for rehabilitation.