Army Post Office APO A branch of a designated USPS civilian Post Office, under the jurisdiction of the postmaster of either New York City or San Francisco, that serves Army or Air Force personnel. APOs distribute mail to and from military personnel.
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Army Post Office APO A branch of a designated USPS civilian Post Office, under the jurisdiction of the postmaster of either New York City or San Francisco, that serves Army or Air Force personnel. APOs distribute mail to and from military personnel.