"We will do it again, if necessary!" US President Donald Trump warned after Iran's foreign minister said three nuclear facilities had been badly damaged in strikes in June.View on euronews

The U.S. wants Iran to end all uranium enrichment. The European nations have yet to make clear their position. The JCPOA limited Iran to enriching uranium up to 3.67% purity -- sufficient for civilian nuclear power purposes but below the 90% purity needed for use in a weapon.