Australian soldier Ben Roberts-Smith, Australia's most decorated soldier and most famous of his generation, has been charged with five counts of the war crime of murder. This comes after a high-profile civil defamation case found that he unlawfully killed several unarmed Afghan detainees. Roberts, who left the Australian Defence Force (ADF) in 2013, denies all wrongdoing and claims the allegations are motivated by spiteful peers. His arrest follows a five-year investigation by a special watchdog set up after a landmark inquiry into allegations of Australian war crimes in Afghanistan. The Office of the Special Investigator (OSI) has launched 53 investigations, but progress has been slow due to limited preserved physical evidence and lack of cooperation. If convicted, Roberts-smith could face life imprisonment and a significant place in history.