 He is a command pilot with more than 2,900 flying hours, including 130 combat hours.On 2 March 2020, it was announced that President Donald Trump would nominate Brown to become the next Chief of Staff of the United States Air Force, succeeding David L. Goldfein.On 9 June 2020, Brown was confirmed unanimously by the United States Senate to succeed Goldfein as Chief of Staff of the United States Air Force.