Trump couldn't persuade anyone else to withdraw/renege on their commitments. So the US is the only country that will be applying sanctions against Iran. EU countries will continue doing business in the way they signed up for, leaving the US alone and isolated. Sad.
BBC says....
"Iran has indicated it will seek to continue the deal, to which China, Russia and the European Union are also signed up.
After speaking together on Tuesday evening, Mrs May, German Chancellor Angela Merkel and French President Emmanuel Macron made clear they would not let the agreement - officially known as the Joint Comprehensive Plan of Action (JCPoA) - collapse.
"Our governments remain committed to ensuring the agreement is upheld, and will work with all the remaining parties to the deal to ensure this remains the case including through ensuring the continuing economic benefits to the Iranian people that are linked to the agreement," they wrote
"After engaging with the US Administration in a thorough manner over the past months, we call on the US to do everything possible to preserve the gains for nuclear non-proliferation brought about by the JCPoA, by allowing for a continued enforcement of its main elements.""