Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:EU foreign policy chief Catherine Ashton speak with journalists prior to a meeting of EU foreign ministers at the EU Council building in Brussels on Monday, Jan. 23, 2012. EU foreign ministers are expected... (Associated Press) 
  
 European Union nations have formally adopted an oil embargo against Iran as part of sanctions over its nuclear program. 
  
 British Foreign Secretary William Hague on Monday called the measure part of "an unprecedented set of sanctions." 
  
 He says, "I think this shows the resolve of the European Union on this issue." 
  
 Diplomats say the measures, adopted by the EU's 27 foreign ministers, include an immediate embargo on new contracts for crude oil and petroleum products while existing ones are allowed to run until July. 
  
 Iran says its nuclear program is exclusively for peaceful purposes. But many international officials fear the country is trying to develop nuclear weapons. 
  
 THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below. 
  
 BRUSSELS (AP) _ European Union nations agreed Monday on an oil embargo against Iran as part of sanctions meant to pressure the country to resume talks on its nuclear program. 
  
 Diplomats said the EU foreign ministers meeting in Brussels would officially adopt the measures later Monday, now that the details had been hashed out by the 27 ambassadors to the EU. The measures include an immediate ban on new contracts for Iranian crude oil and petroleum products, while existing contracts will be allowed to run until July. 
  
 "I am confident that the EU will give a resolute answer today to Iran's refusal to fulfill its international obligations on the nuclear program," German Foreign Minister Guido Westerwelle said, in anticipation of the official adoption by the foreign ministers. 
  
 Iran says its nuclear program is exclusively for peaceful purposes, but many international officials fear the country is trying to develop nuclear weapons. 
  
 The EU will also likely freeze the assets of the Iranian central bank. 
  
 "The pressure of sanctions is designed to try and make sure that Iran takes seriously our request to come to the table," EU foreign policy chief Catherine Ashton said. 
  
 In October, Ashton sent a letter to Saeed Jalili, Iran's top nuclear negotiator, saying her goal was a negotiated solution that "restores international confidence in the exclusively peaceful nature of Iran's nuclear program." 
  
 She says she has not yet received a reply. 
  
 British Foreign Secretary William Hague said the goal of the sanctions would be to "increase the peaceful, legitimate pressure" on Iran to return to negotiations. 
  
 Negotiators have worked hard to try to ensure that the embargo punishes only Iran _ and not EU member Greece, which is in dire financial trouble and relies heavily on low-priced Iranian oil. 
  
 EU negotiators have agreed to a review of the effects of the sanctions, to be completed by May 1, a diplomat said. He spoke on condition of anonymity to discuss the subject of ongoing talks. 
  
 "It is important to know what will happen to individual countries as a consequence of the sanctions," Ashton said. 
  
 Westerwelle said it was critical that action be taken. 
  
 "This is not a question of security in the region," he said. "It is a question of security in the world." 
  
 ____ 
  
 Raf Casert contributed to this report ||||| An engineer looks at the Phase 4 and Phase 5 gas refineries in Assalouyeh, south of Tehran, January 27, 2011. 
  
 TEHRAN/BRUSSELS (Reuters) - Iran accused Europeans on Monday of waging "psychological warfare" after the EU banned imports of Iranian oil, and President Barack Obama said Washington would impose more sanctions to address the "serious threat presented by Iran's nuclear program." 
  
 The Islamic Republic, which denies trying to build a nuclear bomb, scoffed at efforts to choke its oil exports, as Asia lines up to buy what Europe scorns. 
  
 Some Iranians also renewed threats to stop Arab oil from leaving the Gulf and warned they might strike U.S. targets worldwide if Washington used force to break any Iranian blockade of a strategically vital shipping route. 
  
 Yet in three decades of confrontation between Tehran and the West, bellicose rhetoric and the undependable armory of sanctions have become so familiar that the benchmark Brent crude oil price edged only 0.8 percent higher, and some of that was due to unrelated currency factors. 
  
 "If any disruption happens regarding the sale of Iranian oil, the Strait of Hormuz will definitely be closed," Mohammad Kossari, deputy head of parliament's foreign affairs and national security committee, told Fars news agency a day after U.S., French and British warships sailed back into the Gulf. 
  
 "If America seeks adventures after the closure of the Strait of Hormuz, Iran will make the world unsafe for Americans in the shortest possible time," Kossari added, referring to an earlier U.S. pledge to use its fleet to keep the passage open. 
  
 In Washington, Obama said in a statement that the EU sanctions underlined the strength of the international community's commitment to "addressing the serious threat presented by Iran's nuclear program." 
  
 "The United States will continue to impose new sanctions to increase the pressure on Iran," Obama said. 
  
 The United States imposed its own sanctions against Iran's oil trade and central bank on December 31. On Monday it imposed sanctions on the country's third-largest bank, state-owned Bank Tejarat and a Belarus-based affiliate, for allegedly helping Tehran develop its nuclear program. 
  
 The EU sanctions were also welcomed by Israel, which has warned it might attack Iran if sanctions do not deflect Tehran from a course that some analysts say could potentially give Iran a nuclear bomb next year. 
  
 U.S. Secretary of State Hillary Clinton said in a statement with Treasury Secretary Timothy Geithner: "This new, concerted pressure will sharpen the choice for Iran's leaders and increase their cost of defiance of basic international obligations." 
  
 U.S. ambassador to the United Nations, Susan Rice, reiterated Washington's commitment to freedom of navigation in the Strait of Hormuz. "I think that Iran has undoubtedly heard that message and would be well advised to heed it," she said at a meeting of the board of governors of the American Jewish Committee in New York. 
  
 CALLS FOR TALKS 
  
 Germany, France and Britain used the EU sanctions as a cue for a joint call to Tehran to renew long-suspended negotiations on its nuclear program. Russia, like China a powerful critic of the Western approach, said talks might soon be on the cards. 
  
 Iran, however, said new sanctions made that less likely. It is a view shared by some in the West who caution that such tactics risk hardening Iranian support for a nuclear program that also seems to be subject to a covert "war" of sabotage and assassinations widely blamed on Israeli and Western agents. 
  
 The European Union embargo will not take full effect until July 1 because the foreign ministers who agreed the anticipated ban on imports of Iranian crude at a meeting in Brussels were anxious not to penalize the ailing economies of Greece, Italy and others to whom Iran is a major oil supplier. The strategy will be reviewed in May to see if it should go ahead. 
  
 Curbing Iran's oil exports is a double-edged sword, as Tehran's own response to the embargo clearly showed. 
  
 Loss of revenue is painful for a clerical establishment that faces an awkward electoral test at a time of galloping inflation which is hurting ordinary people. But since Iran's Western-allied Arab neighbors are struggling to raise their own output to compensate, the curbs on Tehran's exports have driven up oil prices and raised costs for recession-hit Western industries. 
  
 A member of Iran's influential Assembly of Experts, former Intelligence Minister Ali Fallahian, said Tehran should respond to the delayed-action EU sanctions by stopping sales to the bloc immediately, denying the Europeans time to arrange alternative supplies and damaging their economies with higher oil prices. 
  
 "The best way is to stop exporting oil ourselves before the end of this six months and before the implementation of the plan," the semi-official Fars news agency quoted him as saying. 
  
 'PSYCHOLOGICAL WARFARE' 
  
 "European Union sanctions on Iranian oil is psychological warfare," Iranian Foreign Ministry spokesman Ramin Mehmanparast said. "Imposing economic sanctions is illogical and unfair but will not stop our nation from obtaining its rights." 
  
 Deputy Foreign Minister Abbas Araqchi told the official IRNA news agency that the more sanctions were imposed on Tehran "the more obstacles there will be to solve the issue". 
  
 Iran's Oil Ministry issued a statement saying the sanctions did not come as a shock. "The oil ministry has from long ago thought about it and has come up with measures to deal with any challenges," it said, according to IRNA. 
  
 Mehmanparast said: "The European countries and those who are under American pressure, should think about their own interests. Any country that deprives itself from Iran's energy market, will soon see that it has been replaced by others." 
  
 China, Iran's biggest customer, has resisted U.S. pressure to cut back its oil imports, as have other Asian economies to varying degrees. India's oil minister said on Monday sanctions were forcing Iran to sell more cheaply and that India planned to take full advantage of that to buy as much as it could. 
  
 The EU measures include an immediate ban on all new contracts to import, purchase or transport Iranian crude and petroleum products. However, EU countries with existing contracts can honor them up to July 1. 
  
 EU officials said they also agreed to freeze the assets of Iran's central bank and ban trade in gold and other precious metals with the bank and state bodies. 
  
 EU foreign policy chief Catherine Ashton said: "I want the pressure of these sanctions to result in negotiations." 
  
 "I want to see Iran come back to the table and either pick up all the ideas that we left on the table ... last year ... or to come forward with its own ideas." 
  
 Iran has said it is willing to hold talks with Western powers, though there have been mixed signals on whether conditions imposed by both sides make new negotiations likely. 
  
 IAEA INSPECTORS VISIT 
  
 The Islamic Republic says it is enriching uranium only for producing electricity and other civilian uses. The start this month of a potentially bomb-proof - and once secret - enrichment plant has deepened skepticism abroad, however. 
  
 The United Nations' nuclear watchdog, the International Atomic Energy Agency, confirmed plans for a visit next week by senior inspectors to try to clear up questions raised about the purpose of Iran's nuclear activities. Tehran is banned by international treaty from developing nuclear weaponry. 
  
 "The Agency team is going to Iran in a constructive spirit, and we trust that Iran will work with us in that same spirit," IAEA chief Yukiya Amano said in a statement announcing the January 29-31 visit. 
  
 Iran, whose regional policies face a setback from the difficulties of its Arab ally, Syrian President Bashar al-Assad, has powerful defenders in the form of Russia, which has built Iran a reactor, and China. Both permanent U.N. Security Council members argue that Western sanctions are counter-productive. 
  
 Russian Foreign Minister Sergei Lavrov, classifying the EU embargo among "aggravating factors", said Moscow believed there was a good chance that talks between six global powers and Iran could resume soon and that Russia would try to steer both Iran and the West away from further confrontation. 
  
 His ministry issued an official statement expressing "regret and alarm": "What is happening here is open pressure and diktat, an attempt to 'punish' Iran for its intractable behavior. 
  
 "This is a deeply mistaken approach, as we have told our European partners more than once. Under such pressure Iran will not agree to any concessions or any changes in its policy." 
  
 But that argument cuts no ice with the U.S. administration, for which Iran - and Israel's stated willingness to consider unilateral military action against it - is a major challenge as Obama campaigns for re-election against Republican opponents who say he has been too soft on Tehran. 
  
 (Additional reporting by Robin Pomeroy and Mitra Amiri in Tehran, David Brunnstrom in Brussels, Adrian Croft in London, John Irish in Paris, Alexei Anishchuk in Sochi, Ari Rabinovitch and Jeffrey Heller in Jerusalem, Nidhi Verma in New Delhi, Steve Gutterman in Moscow, Rachelle Younglai and Andrew Quinn in Washington, Fredrik Dahl in Vienna and Patrick Worsnip at the United Nations; writing by Alastair Macdonald; editing by Robert Woodward and Mohammad Zargham) |||||
Solution:
The European Union today rolled out its embargo of Iranian oil, adopting the measure as what Britain's foreign secretary called "an unprecedented set of sanctions" designed to crack down on the country's nascent nuclear program. Existing contracts for crude oil and petroleum will be honored until July, but all new contracts are embargoed effective immediately, the AP reports. The EU is also poised to freeze Iran's central bank's assets. The sanctions should cut deep, notes Reuters: The EU is Iran's biggest oil customer after China. "The pressure of sanctions is designed to try and make sure that Iran takes seriously our request to come to the table," says EU foreign policy head Catherine Ashton, who has written to Iran's leading nuclear negotiator to call for talks to restore "international confidence in the exclusively peaceful nature of Iran's nuclear program." Officials want the sanctions to affect Iran exclusively and not countries like Greece that depend on its cheap oil; to that end, they're examining the sanctions in a review due May 1. "This is not a question of security in the region," says Germany's foreign minister. "It is a question of security in the world."