Iran Nuclear Deal
UK Foreign Secretary Boris Johnson has challenged the US to show there is a better alternative to the deal with Iran that limits its nuclear programme.
Following talks in Brussels with his Iranian and European counterparts, he said the 2015 accord was a considerable accomplishment that was preventing Iran acquiring nuclear weapons.
He stressed that Iran was fully in compliance with it.US President Donald Trump wants to amend the deal or withdraw from it.
In October, he refused to recertify for congress that Iran was complying, accusing it of "Not living up to the spirit" of the agreement.