With the end of the U.S. involvement in the Iran nuclear deal comes the return of U.S. sanctions. Those sanctions can affect companies in other parts of the world, because the U.S. can punish foreign companies that do deals with Iran if those companies also conduct business in the U.S. This, to put it mildly, is awkward, because many of those companies are based in countries like France and Germany that oppose President Donald Trump’s Iran policy and want to stay in the deal.  

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