Mr Pompeo’s trip to Brussels came after the UAE said it was investigating an apparent "sabotage attack" on four vessels, including two Saudi oil tankers, off the coast of Fujairah. Also at the weekend the US announced the return of a Patriot missile defence system to the Arabian Gulf, citing an unspecified threat to US forces in the region. Last week it deployed strategic B-52 bombers in response to alleged Iranian threats.
Mr Pompeo's Brussels visit was seen as an attempt to push the EU to align with US interests but there remains resistance to the US demands on the deal and the re-imposition of sanctions.The Islamic Republic of Iran has engaged in an escalating series of threatening actions and statements in recent weeks. Any attacks by them or their proxies against U.S. citizens or our interests will be answered with a swift and decisive response.
— Secretary Pompeo (@SecPompeo) May 10, 2019
The European signatories said they regretted the decision by the US to reimpose sanctions on Iran while Mr Trump said that the sanctions “dramatically strengthened our national security” before deriding the nuclear deal as “horrible” and “one-sided”.