US President Donald Trump tweeted this week that "If Iran wants to fight, that will be the official end of Iran. Never threaten the United States again", sparking some concerns that conflict may be just around the corner.

We’ve heard about this Iran Nuclear Deal, and we’ve seen how aggressive the US have been against Iran, but is conflict likely, and what role can Europe play?

Ali Ansari is the Founding Director of the Institute of Iranian Studies at the University of St Andrews, and he explained it all to Ivan.