PARIS: US President Donald Trump’s decision to pull the United States out of the 2015 nuclear accord with Iran and reimpose a raft of sanctions puts European businesses on the spot.While the European Union insists it will stick by the nuclear accord to allow trade to continue with Iran, European companies are wary of being caught out by the US sanctions regime and many have already cut back their presence.Here is an overview of how firms could be affected:The sanctions introduced in August...