APOs / FPOs are classed as domestic mail/shipping, so it is domestic rates. Note that you still have fill out the US Customs form for the package.

• For an AE (Area Europe) address, the rates are to New York, where it goes to a large warehouse and is further subdivided based on the specific zip. The military then assumes the responsibility for moving it along to all the regions covered by the AE code - Europe, Central Asia, Africa, Middle East, etc.
  
• The AP (Area Pacific) address is to San Francisco, where the above process happens for the Pacific and East Asia areas.
  
• The AA (Area Americas) address is to Miami, where the above process is repeated for South America, Central America, some small parts of North America and parts of the Antarctic region.

If using an APO or FPO address,

• APO = City
• AE = State
• do NOT put the country where the troop is actually at in the address.

Watch out for the Restrictions of what you can ship...