President Hassan Rouhani says Tehran will continue to reduce its nuclear commitments until European parties to the pact save it by protecting Iran's economy from US penalties.
Many Turkish businessmen are facing huge losses as their products are systematically banned in Iraq, while sanctions-hit Iran pursues its own business interests in the country.
US imposes financial sanctions on Iran's Supreme Leader Ayatollah Ali Khamenei and a string of military chiefs. Iran's ambassador to the UN says the sanctions showed that Washington does not respect international law.
The Trump administration banned group educational travel and cruise ship visits by Americans to Cuba to pressure the Caribbean island's government to stop supporting Venezuelan President Nicolas Maduro.
European countries say they wanted to preserve Iran's nuclear deal and rejected "ultimatums" from Tehran, after Iran scaled back curbs on its nuclear programme and threatened moves that might breach the pact.
Nulling sanctions exemptions for some major economies including Turkey and China, the US is moving against Tehran at full throttle, sparking angry responses from Beijing and Ankara.
The Trump administration is expected to tell five nations, including Turkey, they will no longer be exempt from US sanctions if they continue to import Iranian oil. Last week, a senior Turkish adviser said Ankara expected an extension on its waiver.
The potential for trade and economic growth between Iran and Iraq is enormous but global rivalries are a constant wrench in the relationship.
US sanctions against Iran were seen as a vehicle to pressure Tehran to the negotiation table and dull its influence over the Middle East. Is it working?
Iran's President Hassan Rouhani said Afghanistan, China, Pakistan, Russia and Turkey, all were subject of "the economic terrorism which is designed to create panic in a country's economy in order to prevent investment."
Saudi Arabia's chief prosecutor has charged 11 people in the case of the killing of journalist Jamal Khashoggi and is seeking the death penalty for five. Turkey says it is not satisfied.
The UN's International Court of Justice ordered the United States to lift sanctions on Iran that affect imports of humanitarian goods and products and services linked to the safety of civil aviation.
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