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Japan-United States Sister City Association

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日本
Minato, Tokyo
Japan-United States Sister City Association

Japan-United States Sister City Association (JUSSCA) is a Japanese nonprofit association based in Tokyo, Japan.

The mission of JUSSCA is to cultivate and revitalize existing sister city partnerships through people-to-people exchanges.

08/11/2025

Day 1 of the Japan–United States Leadership Summit

United Nations University, Tokyo – November 9, 2025
The opening day of the Japan–United States Leadership Summit brought together distinguished leaders and innovators from both nations for a day of dialogue at the United Nations University in Tokyo.

Speakers included:
- Nicolas du Bois (Project Manager, Office of the Rector, United Nations University)
- Pritzker Laureate Architect Shigeru Ban
- Former Minister of Foreign Affairs & Digital Transformation Taro Kono
- Former Japan Ambassador to the United States Kenichiro Sasae

We were also honored to welcome our California delegation of civic leaders:

Lula Davis-Holmes (City of Carson Mayor)
Arleen Rojas (City of Carson Councilmember)
Adena Ishii (Berkeley Mayor)
Kelly Cox (Santa Clara Vice-Mayor)
Luis A. McArthur (Oxnard Mayor)
Joshua Sweeney (Laguna Hills Mayor)
Catherine Moy (Fairfield Mayor)
Kim Bowman (La Cañada Flintridge Mayor)
Mona Miyasato (Santa Barbara County Executive Officer)
Oscar Gutierrez (Santa Barbara City Councilmember)
Tania Sheyner (San Francisco Principal Environmental Planner)
Jill Hoffman (Sausalito Councilmember)
John Wu (San Gabriel Councilmember)
Jon Kaji (Torrance Councilmember)
Martha Guerrero (West Sacramento Mayor)
Ara Najarian (Glendale Mayor)

A heartfelt thank you to United Nations University, the United States–Japan Foundation, and the Japan Foundation’s CULCON for making today’s program possible.

03/11/2025

Thank you to City of Carson Councilmember Arleen Rojas for creating this wonderful video highlighting the October 9 and 10 Japan-U.S. Leadership Summit at the United Nations University in Tokyo.

30/10/2025

Yamanashi Prefecture hosted the California Delegation on October 7–8 during the Fuji-California Leaders Summit at the Kawaguchiko Music Forest Museum and Highland Resorts Hotel.

A heartfelt thank you to Yamanashi Governor Kotaro Nagasaki, Shizuoka Governor Yasutomo Suzuki, and Fuji–California Leaders Summit Chair Dr. Hiroshi Tasaka for your exceptional hospitality.

The California delegation was honored to meet mayors and civic leaders from Yamanashi and Shizuoka Prefectures and to connect with talented student artists contributing to U.S.–Japan friendship and sustainable innovation.

24/10/2025

Thank you to City of Carson Councilmember Arleen Rojas for creating this wonderful video featuring a warm welcome by mayors and civic leaders from the Osaka area at the Japan–United States Leadership Summit delegation’s welcome reception on 10/6/25

10/10/2025

Yamanashi Prefecture Welcomes California Delegation
The Japan–United States Leadership Summit delegation from California visited Yamanashi Prefecture on October 8, 2025, for an inspiring tour of the Fuji Hydrogen Valley Research Institute at the Komekurayama Green Hydrogen Facility. 🌱⚡️
Delegates learned about Yamanashi’s cutting-edge innovations in clean energy and hydrogen technology, highlighting the region’s leadership in building a sustainable future. 🌏💡

10/10/2025

A warm welcome in Osaka 🇯🇵
The Japan–United States Leadership Summit delegation — comprised of mayors, city councilmembers, and county officials from California — was graciously received at a welcome reception hosted at Candeo Hotels The Tower Osaka. Osaka’s mayors and city officials extended their hospitality, setting the stage for meaningful dialogue and friendship between our communities.

10/10/2025

Greetings from the Japan-United States Leadership Summit delegation of California Mayors, City Councilmembers and county officials at the U.S. Pavilion at the Expo 2025 Osaka on 10/6/25

17/12/2024

The United Nations University (UNU) and the Japan-United States Sister City Association (JUSSCA) have officially signed a Memorandum of Understanding (MOU), marking a new strategic partnership aimed at fostering subnational diplomacy and advancing Sustainable Development Goals (SDGs). Dr. Tshilidzi Marwala, Rector of the United Nations University and Shin Koyamada, Chairman of JUSSCA signed the agreement.

住所

Minato, Tokyo