Okinawa
Japan
Oman, Gulf of
Indian Ocean
Ombai Strait
Pacific Ocean
Oporto [US Consulate]
Portugal
Oran [US Consulate]
Algeria
Oranjestad
Aruba
Oresund (The Sound)
Atlantic Ocean
Orkney Islands
United Kingdom
Osaka-Kobe [US Consulate General]
Japan
Oslo [US Embassy]
Norway