Iranian president Hassan Rouhani has said a landmark nuclear deal has satisfied all parties - except extremists.
Mr Rouhani said of the accord: "In (implementing) the deal, all are happy except Zionists, warmongers, sowers of discord among Islamic nations and extremists in the US. The rest are happy."
Mr Rouhani said the deal, which lifts economic sanctions in exchange for a limitation of Iran's nuclear ambitions, "opened new windows for engagement with the world".
A strong supporter of the agreement, Mr Rouhani sent out a celebratory tweet calling it a "glorious victory" late on 16 January, while the speeches in Vienna were still taking place.
Mr Rouhani also said the deal was a triumph for all negotiating parties and all factions inside Iran.
"Nobody has been defeated in the deal, neither inside the country nor the countries that were negotiating with us," he said, referring to the United States, the UK, France, Russia, China and Germany.
New York protests against Iran nuclear deal
New York protests against Iran nuclear deal
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A woman holds a poster as she takes part in a rally on Times Square in New York opposing the nuclear deal with Iran
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An inflatable mushroom cloud stands among demonstrators during a rally apposing the nuclear deal with Iran
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Protesters rally against the nuclear deal with Iran in Times Square
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A member of the Neturei Karta Orthodox Jews sect is escorted away by New York City Police during a rally near Times Square to demand that Congress vote down the proposed US deal with Iran in New York
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A woman shouts slogans during a rally against the nuclear deal with Iran in Times Square in New York
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A protestor holds a placard during a demonstration and rally apposing the nuclear deal with Iran in Times Square
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Some of several thousand protestors crowd into 7th Avenue at 42nd street as they demonstrate during a rally apposing the nuclear deal with Iran
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A woman holds a placard as she joins several thousand other protestors to demonstrate during a rally apposing the nuclear deal with Iran
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Protesters rallied against the Iran nuclear deal in New York's Times Square
KENA BETANCUR/AFP/Getty Images
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Protestors shout slogans as they demonstrate during a rally apposing the nuclear deal with Iran
Meanwhile, Israeli prime minister Benjamin Netanyahu pledged that Israel would remain vigilant to ensure that Iran was not violating its commitments.
Mr Netanyahu maintained his strong opposition to the deal, telling his weekly Cabinet meeting: "The Israel policy remains as it was - not to allow Iran to acquire a nuclear weapon."
Mr Netanyahu drew the ire of the Obama administration last year by speaking in front of the US Congress in an attempt to prevent the agreement. On 17 January, he repeated his contention that the deal will strengthen and embolden Tehran, leading to greater regional instability.
"What is clear is that Iran will now have more resources to dedicate to their terrorism and aggression in the region and in the world, and Israel is prepared to deal with any threat," he said.
Mr Rouhani said Iran should use the expected influx of money and investments following the end of sanctions to spark the "economic mutation" of the country, creating jobs and enhancing quality-of-life for Iranian citizens. Iran has been suffering double-digit inflation and unemployment rates for years.
He also said Iran now needs political tranquillity to best benefit from the new economic reality. "All should prevent any domestic and foreign trivialities that thwart us," he said.
"Any irrelevant and diverting dispute is against national expedience."
Mr Rouhani said his country needs up to 50 billion dollars (£35 billion) in foreign investment per year to reach its goal of 8% annual growth.
More than 30 billion dollars (£21 billion) in assets overseas will become immediately available to the Islamic Republic. Official Iranian reports have set the total amount of frozen Iranian assets overseas at 100 billion dollars (£70 billion).
A European oil embargo on Iran will also end. Already, some 38 million barrels of oil are in Iran's floating reserves, ready to enter the market, according to the International Energy Agency.
Although many in Iran welcomed the deal, not everyone was enthused about the agreement, which limits Iran's nuclear programme in exchange for the lifting of sanctions.
The deal is designed with so-called "snap-back" elements that can quickly restore sanctions if Iran is judged to be in violation of its obligations.
Tehran newspapers largely welcomed the implementation of the deal. Even the hard-line Kayhan daily remained impartial and said that for the west, "it is the time of implementation of promises".