On April 15, 2025, Japanese Prime Minister Shigeru Ishiba met with Serdar Berdimuhamedov, the President of Turkmenistan, at the Prime Minister's Office in Tokyo. This meeting marked the beginning of 'expo diplomacy' as part of the preparations for the upcoming Expo 2025 Osaka, where Turkmenistan is the first country to celebrate its National Day. Ishiba emphasized the importance of deepening relations with Turkmenistan, which is recognized for its resource wealth. Following this summit, Ishiba also held a series of telephone discussions with various leaders, including French President Emmanuel Macron and Malaysian Prime Minister Anwar Ibrahim, to discuss international cooperation and the implications of U.S. tariffs under the Trump administration.

On April 15, 2025, Japanese Prime Minister Shigeru Ishiba met with Serdar Berdimuhamedov, the President of Turkmenistan, at the Prime Minister's Office in Tokyo. This meeting marked the beginning of 'expo diplomacy' as part of the preparations for the upcoming Expo 2025 Osaka, where Turkmenistan is the first country to celebrate its National Day. Ishiba emphasized the importance of deepening relations with Turkmenistan, which is recognized for its resource wealth. Following this summit, Ishiba also held a series of telephone discussions with various leaders, including French President Emmanuel Macron and Malaysian Prime Minister Anwar Ibrahim, to discuss international cooperation and the implications of U.S. tariffs under the Trump administration.