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Army Secretary Ryan McCarthy resigned from his post Wednesday as the Biden administration was sworn in, with John Whitley, the service’s comptroller, to take over in an acting capacity. McCarthy, who has steered the Army’s extensive modernization overhaul over the last several years, wrote in his farewell message to the force that he “will continue to be an advocate for the Army team.” Both in his role as under secretary since 2017 and then secretary of the Army, McCarthy was…
