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.

Donald Trump threatened to strike Iran again and reiterated his claims that the U.S. airstrikes conducted as part of Operation Midnight Hammer last month "obliterated" the country's nuclear sites.Quoting Iranian Foreign Minister Abbas Araghchi,

President Donald Trump’s strikes on Iranian nuclear sites have heightened concerns about potential terror threats on U.S. soil. House Intelligence Committee Chairman Rick Crawford (R-AR) warned that Iran may activate sleeper cells in the U.