Lloyd Austin, who led US troops into Baghdad in 2003 and rose to head the US Central Command, has been chosen by president-elect Joe Biden to be the first African-American secretary of defence, US media reported Monday.
A veteran of conflicts in Iraq and Afghanistan, the retired four-star army general, 67, beat the favourite for the job, former under-secretary of defence Michele Flournoy.
CNN, Politico and the New York Times cited unnamed sources familiar with the decision, after Mr Biden said earlier Monday that he had made his choice and would announce it on Friday. Gen Austin would require Senate confirmation to take up the post.
He spent four decades in the army, graduating from the West Point Military Academy and following a career with a wide range of assignments, from leading platoons to running logistics groups and overseeing recruiting, to senior Pentagon jobs.
In March 2003 he was the assistant division commander of the 3rd Infantry Division when it marched from Kuwait into Baghdad in the US invasion of Iraq.
From late 2003 to 2005, he was in Afghanistan commanding the Combined Joint Task Force 180, the principle US-led operation seeking to stabilise the security situation in the country.
In 2010 he was made commanding general of US forces in Iraq, and two years later became the commander of the Central Command, in charge of all Pentagon operations in the Middle East and Afghanistan. During his time in Iraq, he reportedly became close to Beau Biden, the late son of Joe Biden. Beau Biden, at the time holding the rank of Major, served on the staff of Gen Austin, and the two men often attended Catholic Mass together, remaining friends after their Iraq deployment. Beau Biden died of a brain tumor in 2015.
Gen Austin retired from the military in 2016, and joined the board of directors of Raytheon Technologies, one of the Pentagon's largest contractors.
He would require special approval from the Senate due to federal law that requires military officers to wait seven years after retirement before serving as the Pentagon chief.
The waiver has happened twice – most recently for general Jim Mattis, the first defence secretary in the administration of President Donald Trump.
But members of the Senate agreed begrudgingly, amid concerns over Mr Trump's views on the military, and several said at the time that they wouldn't want to do it again.
"He shouldn't be considered for the same reason that Sec. Mattis shouldn't have been," said Congressman Justin Amash in a tweet.
"The law prohibits recently retired members of the Armed Forces from serving in this civilian capacity. Mr Biden would be the second president in a row to violate this norm."
Gen Austin would take responsibility for the 1.2 million active service members, of which about 16 per cent are black.
But black Americans serve disproportionately in the lower ranks and few have achieved high command positions, with some notable exceptions. Colin Powell, whose parents were Jamaican, served as Chairman of the Joint Chiefs of Staff in the early 1990s.
The issue became more clear over the past year when some African-American servicemen and women expressed support for the national Black Lives Matter movement against police racism and abuse.
Former defence secretary Mark Esper said he held numerous listening sessions to make white soldiers understand what their black colleagues felt.