Tehran, April 2, IRNA � Former member of Iran's nuclear negotiating team said that Iran showed goodwill toward US administrations to end hostility, but Washington failed to keep its promises.

Addressing meeting of Global Relations Council in Cleveland, Ohio on Saturday, Syyed Hossein Mousavian described the relations between Iran and the US as the most complicated in today's world of diplomacy.

He said that the US should observe four strategies regarding Iran including using diplomacy not sanctions, using language of respect not threat and humility, ensuring non-interference in Iran and taking advantage of mutual interests.

Referring to regular US enmity against Iran following the implementation of Joint Comprehensive Plan of Action (JCPOA), he enumerated several cases of US treasons against the Iranian nation.

Organizing coup d'�tats against Prime Minister Mohammad Mosaddeq in 1953, supporting the deposed shah's dictatorship, exercising policy of regime change in Iran, backing the Iraqi dictator's aggression against the country, downing an Iranian plane and killing 290 passengers on board are among the US' tyrannies against the Iranian nation, he said.

The former diplomat also said that Americans should know that the reasons behind Iran's non-confidence in the US are, extensive, legitimate and real.

He also said that direct talks between the Iranian and the US' high-ranking officials, extradition of the prisoners, releasing the US sailors and unfreezing Iranian assets worth $1.7 billion were unprecedented developments in Tehran-Washington ties in the post-sanctions era.

Iranian nation is proud and never tolerates language of force and contempt, he said, noting that unfortunately, most of the US statesmen are in the habit of talking with Iran using language of force and threat, which has always backfired.

Referring to Iran and major world powers' success in solving nuclear standoff, Mousavian said, 'We should not be driven to illusion. Iran and the US have following the JCPOA many disputes over Israel, Syria, terrorism and Yemen, which cannot be solved easily.'

However, he added, JCPOA forwarded a diplomatic strategy for solving other problems between the two countries, he said.

Asked about the Islamic Republic Guards Corps' (IRGC) attitude towards JCPOA, he said that when the two sides agreed over the principles of the deal, commander of IRGC was among the first figures who congratulated.

Mousavian also said that the hardest section of Iran's commitments in implementing JCPOA pertained to PMD requiring inspection of Parchin military installations and IRGC was cooperative in this regard.

By IRNA