Moscow said Wednesday that it is prepared to do “everything” within its power to help diplomatically resolve the standoff between the United States and Iran over Tehran’s nuclear program. Russia, which holds the world’s largest confirmed stockpile of nuclear weapons,

Iran says its nuclear programme is for civilian purposes only. It insists it is not trying to develop nuclear weapons, but many countries - as well as the global nuclear watchdog, the International Atomic Energy Agency (IAEA) - are not convinced.

In 2018, during his first term in office, President Donald Trump pulled out of an existing 2015 nuclear deal with Iran calling it 'one-sided'