The concept of getting mail overseas to and from military personnel stationed overseas dates back many years. AP, which stands for Armed Forces Pacific. Military Mail is a vital communication link with members of our armed forces. Military Mail refers to both letters and packages. All Military Mail is treated as. Armed Forces - Pacific Zip Code Map. EasyURL:'ryanmurphysshirtsandmore.comte/ armedforcespacific' for Armed Forces - Pacific zip code and information.