Letters of request
- Letter of Request to US President Trump to Visit the Atomic-Bombed Cities (January 28, 2025)
- Letter of Request to Prime Minister Kishida Regarding the TPNW (December 13, 2022)
- Letter of Request to US President Biden to Visit the Atomic Bombed Cities (March 22, 2022)
- Letter of Request to Prime Minister Kishida Regarding the TPNW (November 18, 2021)
- Letter of Request to IOC President Bach (July 28, 2021)
- Letter of Request to US President Biden to Visit the Atomic Bombed Cities (January 21, 2021)
- Letters of Request to US and Russia Presidents (INF Treaty, January 30, 2019)
- Letters of Request to G20 Leaders and Foreign Ministers February 12, 2019)
- Letter of Request to Pope Francis to visit the atomic bombed cities (November 15, 2017)