Japan ‧ Okinawa Prefecture
Kingdom of the Netherlands ‧ Utrecht
Republic of the Philippines ‧ Angeles City
Japan ‧ Osaka Prefecture
Republic of Poland
United States ‧ City of Long Beach, Los Angeles County, California
Japan
Czech Republic ‧ Brno
Socialist Republic of Vietnam
Japan ‧ Narita City, Chiba Prefecture
United States ‧ City of Seattle, King County, Washington
Japan ‧ Ibaraki Prefecture
Republic of the Marshall Islands
Japan ‧ Yokohama City, Kanagawa Prefecture
United States ‧ San Bernardino County, California
Japan ‧ Choshi City, Chiba Prefecture
Japan ‧ Kagawa Prefecture