Maribell Martinez, left, a station resident, sends packages at Row Home 9148 A, one of the various mobile post office locations being manned by Lance Cpl. Natalie Mullin, middle, and Lance Cpl. Sara Garciamedina, right, postal clerks with Headquarters and Headquarters Squadron, at Marine Corps Air Station Iwakuni, Japan, Dec. 4, 2015. Throughout the week, one mobile location will be opened daily and manned by postal Marines that can offer assistance if needed. The postal express are mobile locations that offer opportunities for station residents to drop-off holiday mail while also meeting the U.S. postal service mailing deadlines. - Maribell Martinez, left, a station resident, sends packages at Row Home 9148 A, one of the various mobile post office locations being manned by Lance Cpl. Natalie Mullin, middle, and Lance Cpl. Sara Garciamedina, right, postal clerks with Headquarters and Headquarters Squadron, at Marine Corps Air Station Iwakuni, Japan, Dec. 4, 2015. Throughout the week, one mobile location will be opened daily and manned by postal Marines that can offer assistance if needed. The postal express are mobile locations that offer opportunities for station residents to drop-off holiday mail while also meeting the U.S. postal service mailing deadlines.