Arlington Cemetery : 2 sites for the soldier POTUS honored - lots of symbols and numbers.
https://ancexplorer.army.mil/publicwmv/
https://damontucker.com/2012/01/21/department-of-defense-releases-the-names-of-six-marines-killed-jan-19-in-afghanistan/
https://en.wikipedia.org/wiki/United_States_Department_of_Veterans_Affairs_emblems_for_headstones_and_markers