Speaking before the UN General Assembly Tuesday, President Donald Trump proclaimed America's sovereignty while also acknowledging the right of other nations to pursue their own customs, beliefs and traditions.
"In less than 2 years my administration has accomplished more than nearly any administration in the history of our country", boasted Trump.
The US president criticized Iran as a "corrupt dictatorship" that is "plundering the Iranian people to pay for aggression overseas".
Some Iranian insiders have said any talks between Mr Rouhani and Mr Trump would effectively kill the existing nuclear accord.
A year ago, Trump stood at the global rostrum and derided the North Korean leader as "Little Rocket Man" and threatened to "totally destroy North Korea".
Those efforts will all be on display as Trump addressed the gathering of world leaders, delivering a speech that - like previous year - touted the President's "foreign policy successes".
Mr Trump used his speech to call for worldwide trade reforms and insist that his main objective as president is to protect American sovereignty. He called on the member States of the Organization of the Petroleum Exporting Countries to lower oil prices and spend more on defence, and warned that Germany will depend entirely on Russian energy if it fails to change course.
Trump said that the United States intends to ramp up economic pressure on Iran, and he urged other countries to "isolate Iran's regime as long as its aggression continues".
This time around, Trump heralded his own diplomacy on North Korea including a historic summit in June with Kim, saying he has worked to "replace the specter of conflict with a bold and new push for peace".
Pompeo said the USA considers Iran the leading state sponsor of terrorism.
The U.S. president did not single out one nation with severe language as he did with North Korea during last year's speech.
Conspicuously absent from Trump's criticisms: Russian Federation, whose hostile actions have been a focus of criticism from Western countries for years but with whom Trump has tried to foster better relations.
Regarding Iran, the president indicated he won't be meeting with the Islamic Republic's leader, President Hassan Rouhani, until his nation renounced its "bloody agenda".
But his 35-minute speech in the green-marbled UN hall, while relatively low-key, was also aimed squarely at Iran, which the United States accuses of harbouring nuclear ambitions and fomenting instability in the Middle East through its support for militant groups in Syria, Lebanon and Yemen.
The heated messages will come after Mr Rouhani hit out at the U.S. during his speech to the General Assembly, arguing the current administration has been behaving like a "bully". "This is great news for our citizens and for peace-loving people everywhere", Trump said.
Trump has been busy enough at the United Nations that he hasn't had time to tweet about the speech, but once he gets back in to the warmer comforts of his couch, he'll surely let rip with what will no doubt be a tirade for the ages.
In a Monday interview with U.S. TV network NBC, Rouhani said there is "no such program for a meeting" with Trump, who withdrew from the 2015 nuclear deal between Iran and six world powers in May and started a process of re-imposing economic sanctions on Tehran.
Trump has said he is willing to negotiate with Iran to reach a new deal to curb its nuclear and other perceived malign activities.
Trump's administration is pushing allies to cut imports of Iranian oil to zero as Washington prepares to restore sanctions on Iran's oil sales in November.
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