Iran will hold nuclear talks with France, Germany, and the UK in Istanbul on Friday after warnings from the three European powers that failure to resume talks could lead to renewed UN sanctions. The meeting follows attacks by Israel and the US on Iranian nuclear sites. The US withdrew from the 2015 nuclear deal in 2018, while the E3, China, and Russia remain parties. Iran blames the US for the recent attacks. Meanwhile, Russia's President Putin met with Iran's top nuclear adviser to discuss regional tensions. Iran insists its nuclear program is for civilian use, rejecting Western pressure and threats.