âNo nation on Earth has an interest in seeing this band of criminals arm itself with nuclear weapons and missiles,â Mr. Trump said. âThe United States has great strength and patience, but if it is forced to defend itself or its allies, we will have no choice but to totally destroy North Korea. Rocket Man is on a suicide mission for himself and for his regime.â
Without mentioning it by name, Mr. Trump also chastised China for continuing to deal with its rogue neighbor. âIt is an outrage that some nations would not only trade with such a regime, but would arm, supply and financially support a country that imperils the world with nuclear conflict,â the president said.
He went on to assail the Iran agreement, which was negotiated by President Barack Obama and leaders of five other powers and ratified by the United Nations Security Council to curb Tehranâs nuclear program for a decade in exchange for lifting international sanctions. Under American law, Mr. Trump has until Oct. 15 to certify whether Iran is complying with the agreement, which he has done twice so far since taking office. But he has made clear that he would prefer not to do so again, which could result in the unraveling of the accord.
âThe Iran deal was one of the worst and most one-sided transactions the United States has ever entered into,â Mr. Trump told the United Nations audience. âFrankly, that deal is an embarrassment to the United States, and I donât think youâve heard the last of it, believe me.â
The tough words cheered the delegation from Israel, whose prime minister, Benjamin Netanyahu, and advisers applauded. In his own speech later, he said Mr. Trump had ârightly called the nuclear deal with Iran an embarrassmentâ and pointed to North Korea as an example.
âIn the last few months, weâve all seen how dangerous even a few nuclear weapons can be in the hands of a small rogue regime,â Mr. Netanyahu said. âNow imagine the danger of hundreds of nuclear weapons in the reins of a vast Iranian empire, with the missiles to deliver them anywhere on Earth.â
Others called Mr. Trumpâs speech over-the-top. âIf Trump was determined to demonstrate to the world that he is unhinged and an imminent danger to world peace, he has succeeded with this speech, and will only make it harder for him to win over the world to his self-destructive goals,â said Trita Parsi, president of the National Iranian American Council, a Washington-based group that is critical of the Tehran government but advocates more engagement.
Neither Hassan Rouhani, Iranâs president, nor Mohammad Javad Zarif, its foreign minister, were in the hall for Mr. Trumpâs speech. North Koreaâs ambassador left his seat before the president started speaking. The rest of the audience gave Mr. Trump polite but unenthusiastic applause.
President Emmanuel Macron of France, who has a friendly relationship with Mr. Trump, took sharp exception to the most combative points in the American leaderâs speech. In his General Assembly address, Mr. Macron called the Iran agreement âsolid, robust and verifiable,â and said renouncing it would be a âgrave error.â
While he shared Mr. Trumpâs assertion that North Koreaâs nuclear belligerence was dangerous and unacceptable, Mr. Macron said multilateral diplomatic pressure was the best solution. âFrance rejects escalation and will not close any door to dialogue,â he said.
The French president also confronted a big issue Mr. Trump conspicuously omitted, climate change. âThe planet will not negotiate with us,â Mr. Macron said, referring to the Paris climate accord that Mr. Trump has renounced.
He added that he hoped the United States might yet rejoin the accord. âI fully respect the decision of the United States, but the door will always be open,â he said.
The United Nations secretary general, AntÃ³nio Guterres, likewise implicitly rebuffed Mr. Trump on climate change. âWe know enough today to act,â he said as he opened the annual United Nations General Assembly session. âThe science is unassailable.â
Mr. Guterres criticized what he called âclosed doors and open hostilityâ in the face of vast refugee crises and called on countries to treat those crossing borders with âsimple decency and human compassion.â
Mr. Trump arrived at the United Nations with a more overtly nationalist approach than past American presidents, predicated on a belief that the United States has been taken advantage of in areas like trade, security and other international affairs. In addition to abandoning the Paris accord, he has renounced the Trans-Pacific Partnership trade pact with 11 other nations and threatened to scrap the North American Free Trade Agreement if it is not renegotiated to his liking.
In his speech, he used the word âsovereignâ or âsovereigntyâ 21 times. âAs president of the United States, I will always put America first, just like you, as the leaders of your countries, will always and should always put your countries first,â he said, generating a smattering of applause.
âThe United States will forever be a great friend to the world, and especially to its allies,â he went on. âBut we can no longer be taken advantage of or enter into a one-sided deal where the United States gets nothing in return. As long as I hold this office, I will defend Americaâs interest above all else. But in fulfilling our obligations to our own nations, we also realize that itâs in everyoneâs interest to seek a future where all nations can be sovereign, prosperous and secure.â
Mr. Trump mentioned only in passing one of the most prominent examples of a violation of sovereignty in recent years, the still-unresolved Russian intervention in Ukraine and annexation of Crimea. But he went on to denounce the actions of Venezuelaâs government against its own people without explaining how that fit into his concept of respecting sovereignty.
âThe Socialist dictatorship of NicolÃ¡s Maduro has inflicted terrible pain and suffering on the good people of that country,â Mr. Trump said. âThis corrupt regime destroyed a prosperous nation by imposing a failed ideology that has produced poverty and misery everywhere it has been tried.â
The focus on sovereignty drew mixed reviews. âThe speech was more positive than what was anticipated,â said President Sauli NiinistÃ¶ of Finland. âThere were a few tough comments, especially on North Korea. He stressed the sovereignty of nations. In my view, he meant that every country and leader should take responsibility for their peopleâs well-being.â
Aaron David Miller, a former American peace negotiator now at the Woodrow Wilson International Center for Scholars in Washington, said Mr. Trump âawkwardly tried to reconcileâ his nationalist approach with the international orientation of the United Nations. âPresident Trumpâs speech was a confusing hodgepodge of tropes, themes and threats that made one unmistakable point: there is no coherent Trump Doctrine,â he said.
After the speech, the president attended a lunch hosted by Mr. Guterres for more than 200 leaders and diplomats. In a toast, Mr. Trump played down his years of deriding the United Nations and offered a positive view of its future. âFor years, Iâve been a critic,â he said, âbut Iâve also been somebody that said the United Nations has tremendous potential.â
Mr. Trump has tried to mediate a standoff between Qatar and other Arab countries. Qatar has sought to convince Mr. Trump that he is wrong about its links to radicalism, airing television ads during the United Nations session with an intended audience of one featuring captions like, âQatar Stands With United States Against Terrorism.â
The message may have gotten through since Mr. Trump made no mention of any concerns with Qatarâs support for radicalism in front of news cameras and indeed called the emir a longtime friend. When a reporter asked if he still considered Qatar funder of terrorism, the president did not answer.
âWe are right now in a situation where weâre trying to solve a problem in the Middle East and I think weâll get it solved,â Mr. Trump said. âI have a very strong feeling that it will be solved pretty quickly.â
The emir welcomed his help. âAs you said, Mr. President, we have a problem with our neighbors and your interference will help a lot and Iâm sure we can find a solution for this problem,â he said.
âWe will get it solved,â Mr. Trump said.