World powers and signatories have since rallied around the accord, which imposed curbs on Iran's nuclear programme in exchange for the lifting of punishing economic sanctions. They recognized that the JCPOA's survival depends on interests of Iran to be respected.
Early Friday morning in Vienna, representatives of the U.K., France, Germany, Russia and China - the remaining signatories to the Iran nuclear deal - met with Tehran officials for talks on mitigating any fallout following the US withdrawal from the nuclear deal.
Secretary Pompeo warned Iran to agree to these demands, otherwise, the USA will impose tough economic sanctions. Iran's nuclear program was the sole focus of the global community.
A senior Iranian official says Tehran will give the Europeans until the end of May - less than a week away - to produce a package of economic and political guarantees created to enable Iran to continue doing business with worldwide companies and to continue getting paid for its exports.
That's not all. Pompeo said any treaty will also require Iran to change its regional and military policies - things like its ballistic missile testing in defiance of United Nations bans and its military meddling in Syria, Yemen, Lebanon and Afghanistan.
Diplomats who follow the agency said an inspection last month went down to the wire, but a senior diplomat also familiar with the IAEA's work said on Thursday the report was not taking Iran to task. Enhanced economy of the country could lead to resilient foreign policy and substantial foreign policy might result in geopolitical insecurity.
Tehran has threatened to restart its uranium enrichment program at an "industrial level" if the 2015 pact falls apart.More news: Rockets lose Game 7 to Warriors 101-92
In his first major foreign-policy address since taking office in April, U.S. Secretary of State Mike Pompeo articulated the Trump administration's new policy regarding Iran, which demands that the country halt its ballistic-missile program, provide access to military bases for inspection, and end its belligerent activities in the region and overseas.
"We welcome Pompeo to the world of foreign policy and diplomacy".
Since the US's pull out, the other signatories have since embarked on a diplomatic marathon to try to keep the agreement afloat.
He said: "If Europeans hesitate in responding to out demands, Iran is entitled to resume its nuclear activities". The deal lets Iran enrich but under tight restrictions.
Iran has struggled to benefit from the accord so far, partly because of remaining unilateral U.S. sanctions that have deterred major Western investors from doing business with Tehran.
The chief executive of French oil and gas major Total has said that USA sanctions on Iran represent a huge challenge.
Trump denounced the accord, completed under his predecessor Barack Obama, partly because it did not cover Iran's ballistic missile development programme, its role in Middle East conflicts or what happens after the deal begins to expire in 2025.
In comments on May 23, Ayatollah Khamenei stressed that Europeans must protect Iranian oil sales from the USA pressure and continue buying Iranian crude, and must promise they would not seek new negotiations on Iran's missile program and regional activities.