Secretary of the Army Ryan D. McCarthy has authorized up to 21,000 National Guard men and women to support the 59th Presidential Inauguration in Washington, D.C. See the full release:
https://twitter.com/NGBPA1636/status/1349868530100019200
https://www.nationalguard.mil/Resources/Press-Releases/Article/2473142/national-guard-support-to-59th-presidential-inauguration-authorized-up-to-21000/