Nuclear program of Iran
U.S. President Obama reportedly sent a letter dated 20 April 2010 to President Lula of Brazil, in which he outlined a proposal of fuel swap. While expressing skepticism that the Iranians would now be willing to accept such a deal, having provided "no credible explanation" for the previous deal's rejection, President Obama wrote "For us, Iran’s agreement to transfer 1,200 kg of Iran’s low enriched uranium (LEU) out of the country would build confidence and reduce regional tensions by substantially reducing Iran’s LEU stockpile." Turkish Prime Minister Recep Tayyip Erdogan received a similar letter. A senior U.S. official told the "Washington Post" that the letter was a response to Iran's desire to ship out its uranium piecemeal, rather than in a single batch, and that during "multiple conversations" U.S. officials made clear that Iran should also cease 20% enrichment; however, the official stated "there was no president-to-president letter laying out those broader concerns".
Iran
Since 2005, Iran's nuclear program has become the subject of contention with the international community, mainly the United States. Many countries have expressed concern that Iran's nuclear program could divert civilian nuclear technology into a weapons program. This has led the United Nations Security Council to impose sanctions against Iran which had further isolated Iran politically and economically from the rest of the global community. In 2009, the U.S. Director of National Intelligence said that Iran, if choosing to, would not be able to develop a nuclear weapon until 2013.
, the government of Iran maintains diplomatic relations with 99 members of the United Nations, but not with the United States, and not with Israel—a state which Iran's government has derecognized since the 1979 Revolution. Among Muslim nations, Iran has an adversarial relationship with Saudi Arabia due to different political and Islamic ideologies. While Iran is a Shia Islamic Republic, Saudi Arabia is a conservative Sunni monarchy. Regarding the Israeli–Palestinian conflict, the government of Iran has recognized Jerusalem as the capital of the State of Palestine, after Trump recognized Jerusalem as the capital of Israel.