Japan is expanding urban cooperation with Iran as regional tensions intensify between Tehran and Washington. Japan’s Ambassador to Iran, Tamaki Tsukada, described recent discussions with Tehran Municipality as “constructive,” signaling growing collaboration in urban management, disaster resilience, environmental protection, and technical exchange. According to IRNA, the partnership includes air pollution mitigation, waste management modernization, and a new UN-Habitat-supported hospital retrofitting initiative aimed at improving earthquake resilience in Tehran before a potential nationwide rollout. The engagement comes amid heightened geopolitical strain and renewed U.S.-Iran tensions.