Australia’s most decorated living war veteran, Ben Roberts-Smith , on Friday lost his appeal of a civil court ruling that blamed him for unlawfully killing four unarmed Afghans. Meanwhile a veterans’ advocate called on prosecutors to speed up their investigations of war crime allegations in Afghanistan that have left innocent soldiers under a cloud of suspicion. Three federal court judges unanimously rejected his appeal of a judge’s ruling in 2023 that Roberts-Smith was not defamed by newspaper