For anyone who knows friends and family serving in the military, you’ve likely heard people throw around the term “FPO address” at one time or another. But what is it? Is it a normal address, or something different? Let Troopster help! We’re a veteran-owned business that provides friends and families a convenient way to buy, personalize, and ship care packages, all from the comfort of your own home! As such, we live and breathe military mail and can answer all your questions about FPO addresses. And, to start, the FPO in FPO address stands for “Fleet Post Office,” and it is used to ship letters and packages to Navy installations.