Each 2 ft. x 3 ft. Principal Deputy Under Secretary of Defense flag is printed on 100% nylon, hand-sewn with two rows of stitching on top and bottom, four rows stitching on the fly end, and finished with a canvas header and brass grommets. Made to U. S. government design specifications in the USA.
Deputy Under Secretary of Defense (DUSD) is the title for several high-ranking posts from 2010 until 2017, these positions were known as Principal Deputy Under Secretary of Defense (PDUSD). The title for these positions was renamed to remove the word "Principal" as part of the National Defense Authorization Act for Fiscal Year 2018.