Washington (CNN) -- The efforts by leaders of Turkey and Brazil to broker a nuclear deal with Iran reflects growing dissatisfaction with the traditional world order in which the United States is the only superpower, which they view as outdated and unjust.





And their intervention on the Iran issue reflects a growing perception among many countries that the United States is unable to resolve international conflicts alone.





The visit this week to Tehran by Turkish Prime Minister Recep Tayyip Erdogan and Brazilian President Luiz Inacio Lula da Silva was a rare show of personal, high-stakes diplomacy by a pair of world leaders.





Turkey and Brazil hailed the agreement they reached for Iran to ship some of its nuclear fuel out of the country as a major step toward resolving Iran's years-old standoff with the West.





But it was promptly pooh-poohed by the United States, which, a day after the deal was announced, introduced a sanctions resolution to the United Nations Security Council in what was perceived widely in Ankara and Brasilia as an American snub of two close allies.





The Obama administration never really supported Turkey and Brazil's diplomatic efforts.





While U.S. officials were prepared to be pleasantly surprised if Lula and Erdogan were able to produce a deal that addressed all their concerns about Iran's nuclear program, they didn't think that it would happen and were concerned the deal would complicate efforts to pass the U.N. resolution.





For Lula and Erdogan, however, the introduction of the resolution handicaps their efforts to get Iran to cooperate.





Brazil and Turkey, both emerging democracies, have been eagerly flexing their muscles on the international stage for some time. Some of their reasons for pursuing a more active global diplomatic role are similar, others are quite different.





Ankara's interest in trying to mediate the standoff with Iran is primarily regional, driven by the desire to avoid a conflict on its border. Iran is also a large trading partner with whom Turkey has lucrative oil and gas deals.





Iran isn't the first issue Turkey has tried to mediate between countries in its neighborhood. In 2008 Turkey led indirect talks between Israel and Syria, although there was no breakthrough.





For years Turkey has sought to position itself as a bridge between East and West. Even as it plays an important role in NATO and seeks to join the European Union, Turkey has clung to its Muslim identity. This week Ankara announced its bid to host the summit meeting of leaders of the Organization of the Islamic Conference in 2014.





Turkey argues it is uniquely poised to coax the Iranian regime into cooperating with the international community.





Turkish Foreign Minister Ahmet Davutoglu recently told a group of reporters in Washington that no country understands the Iranian mindset and culture like Turkey. In addition to sharing a border, he noted the two countries share a long history and that many Iranians speak Turkish, including Iranian President Mahmoud Ahmadinejad.





Lula, who leaves office at the end of the year, also saw himself as the one leader who could broker a deal between Iran and the West. But his interest is largely for that of his stature and his country's.





As one of the world's big emerging economies, Brazil and the other BRIC countries -- Brazil, Russia, India and China -- account for about half of the global growth and represent 40 percent of the world's population. Lula has artfully parlayed his country's newfound economic influence into a role for Brazil as a growing world power





Hugely popular at home and abroad, Lula was hailed by newspapers around the world as a talented diplomat when the Iran deal was announced. But privately U.S. officials complain that Lula is trying to play statesman at the expense of their own diplomatic efforts.





"For him it's a brass ring," one senior U.S. official said. "Iran just happens to be convenient."





It may be a little of both. Lula has spent much of his seven-year term advocating for a greater international role for Brazil, including a permanent seat at the United Nations, which he argues is dominated by a handful of nations. He has positioned himself as a leader of Latin America's growing leftist movement and
who introduced a sanctions resolution what does the resolution handicap
United States, their efforts to get Iran to cooperate.
question: who introduced a sanctions resolution, answer: United States, | question: what does the resolution handicap, answer: their efforts to get Iran to cooperate.