Our History
Japan-United States Sister City Association (JUSSCA)
The sister city program was instituted in the United States on September 11, 1956 at the White House Conference when then U.S. President Dwight D. Eisenhower proposed a national citizen diplomacy initiative. The first sister city relationship between a U.S. city and a Japanese city had been established just one year prior in 1955 between the City of St. Paul, Minnesota and the City of Nagasaki, Japan. This was followed by sister city partnerships between the cities of Sendai and Riverside, California in March, 1957, the cities of Okayama and San Jose, California in May, 1957, and the cities of Yokohama and San Diego, California in October, 1957. Today, over 450 sister city/town and state/prefectural relationships exist, representing the world’s largest and oldest such partnerships for both Japan and the United States.