Donald Trump, the former US President, has pushed for nuclear talks with Iran, sparking global attention. While the exact reasons behind this move haven't been elaborated, it marks a notable shift in Trump's previously hardline approach to Iran, potentially opening doors to conflict resolution and furthering global nuclear safety efforts. The dates and potential formats for these discussions haven't been specified.

Japan, as an ally of the United States and one of the leading non-nuclear states, has keen interest in nuclear non-proliferation efforts. A shift towards diplomacy and negotiation with Iran aligns with Japan's peaceful diplomatic approach as per Article 9 of their post-WWII constitution. Such international developments significantly impact Japan’s strategic relations and positioning.

US-EU relations with Iran have been tense due to longstanding concerns over Iran's nuclear amibitions. The Trump administration had abandoned the Iran nuclear deal, which had been considered a critical achievement by the EU. The apparent shift towards dialogue may ease some of this tension, but skepticism remains given the history of sanctions and escalated conflict under Trump's administration.