Abe's Iran mediation attempt (2019)
Japanese Prime Minister Shinzo Abe became the first sitting Japanese leader to visit post-revolutionary Iran, meeting both Supreme Leader Ali Khamenei and President Hassan Rouhani in Tehran. He carried a message from Trump and proposed a secret US-Iran summit in Tokyo. Khamenei told Abe he did not consider Trump 'worthy of exchanging messages with.' During the visit, a tanker was attacked in the Gulf of Oman, further undermining the effort.
The mediation produced no breakthrough. The proposed Tokyo summit never materialized, and US-Iran tensions continued to escalate through the end of 2019.
The failure established a cautionary precedent for Japanese Middle East diplomacy but also demonstrated Tokyo's willingness to act independently on issues affecting its energy security.
Takaichi's initiative directly echoes her mentor Abe's approach, but under far more extreme conditions — an active war rather than diplomatic tensions, and with Japan's oil supply already disrupted rather than merely threatened.