With friends like Donald Trump who needs enemies?
That was the reaction from European Council Chief Donald Tusk when the US president withdrew from the Iran nuclear deal and reimposed sanctions.
EU leaders want to save the nuclear deal - and multi-billion dollar business contracts.
But European companies are bowing to US demands by pulling out of Iran - including British Airways and Air France, which are grounding flights to Tehran.
That's despite revised EU legislation called "blocking statute".
It's aimed at nullifying US legal action against European firms which defy US sanctions on Iran.
Germany's foreign minister has called for independent payment channels to be created which could avoid US sanctions.
And French President Emmanuel Macron says Europe's historical partner 'seems to turn his back on this common history':
So, how wide is the rift across the Atlantic?
Presenter: Elizabeth Puranam
Guests:
Thorsten Benner - Director, Global Public Policy Institute
Cathryn Clüver Ashbrook - Executive Director, Future of Diplomacy Project, Harvard Kennedy School
Daniel Gros - Director, Centre for European Policy Studies