President Joe Biden has picked US Air Force Chief General Charles Q Brown as the top US military officer, the White House said on Wednesday, elevating a former fighter pilot with experience in the Pacific at a time of rising tension with China.

Brown, whose long-anticipated appointment is subject to Senate confirmation, would be only the second Black officer to become chair of the Joint Chiefs of Staff, after Colin Powell two decades ago.

Biden’s official schedule for Wednesday said: “In the afternoon, the president will announce his intent to nominate General Charles Q Brown, Jr to serve as the next chairman of the Joint Chiefs of Staff.”

The move follows Biden’s appointment of Lloyd Austin to become the first Black US secretary of defence, the top civilian position at the Pentagon.

A senior Biden administration official said Biden had accepted Austin’s recommendation to pick Brown for the position, believing he “understands the strategic challenges the United States faces around the world.”

“He helped build and lead the air campaign against ISIS. He is deeply versed in the challenges posed by the PRC (Peoples Republic of China). And he has a strong understanding of our NATO allies’ perspectives and capabilities,” the official said.

Upon Brown’s confirmation, Black Americans would hold the top two positions at the Pentagon for the first time - a major milestone for an institution that is diverse in its lower ranks but largely white and male at the top.

Brown is a self-described introvert whose public persona contrasts sharply with the outgoing chair, Army General Mark Milley, a loquacious Boston native whose tenure included both the Trump and Biden administrations.

Last year, speaking at a security forum, Brown joked that his wife would ask: “Did you use all your words at work today?”

In the wake of the 2020 killing of George Floyd, a Black man, by Minneapolis police, Brown recounted his experiences in an emotional video posted online.

He said how, during his Air Force career, he was “often the only African American in my squadron or, as a senior officer, the only African American in the room” and of wearing the same flight suit as his squadron with wings pinned on his chest yet being asked if he was a pilot.

Known by colleagues as “CQ,” Brown’s experiences include overseeing coalition air operations against Islamic State from the Air Force’s top base in the Middle East.

But it’s his experiences as commander of the US Air Force in the Pacific from 2018 to 2020 that gave him a primer on tensions with China’s rapidly strengthening military, an issue likely to loom large over his four-year term as chair.

Heather Wilson, who was secretary of the Air Force at the time, praised Brown's leadership style and experience in the Pacific.

“He’s thoughtful, respected by his peers and subordinates, and will provide steady leadership and good advice for the country,” she told Reuters.

Although widely respected, it is unclear how quickly Brown would be confirmed by the Senate. Senator Tommy Tuberville has been blocking military nominations from moving forward since February because he believes the Pentagon is improperly using the funding to cover travel costs for abortions of service members. The White House on Wednesday urged Tuberville to release his hold on Pentagon nominees, saying he is threatening national security.