military mail
postal services provided by armed forces that allow serving members to send and receive mail (to and from civilians and for military use)
en-GB/ˈmɪlɪtəɹɪ ˈmeɪl/
en-US/ˈmɪləˌtɛɹi ˈmeɪl/
postal services provided by armed forces that allow serving members to send and receive mail (to and from civilians and for military use)