(FILES) In this file photo taken on October 17, 2014 Commander of US Central Command Gen. Lloyd Austin III conducts a media briefing on Operation Inherent Resolve, the international military effort against (IS) Islamic State group, at the Pentagon in Washingon, DC. - US President-elect Joe Biden has chosen retired General Lloyd Austin to head his Defence Department, US media reported on December 7, 2020. (Photo by Paul J. RICHARDS / AFP)