The US president made the comment in an early morning Truth Social post on the final day of his visit to China.
Donald Trump has suggested the military destruction of Iran is “to be continued”.
The US president made the comment in an early morning Truth Social post on the final day of his visit to China.
It comes amid stalled talks with Iran after Mr Trump said the already fragile ceasefire was “on life support” and dismissed Tehran’s peace proposal as “garbage”.
He listed the military offensive in the Middle East, which has led to a stand-off over the strategic Strait of Hormuz waterway, as one of his achievements “during the 16 spectacular months of the Trump Administration”.
In the post, the president insisted that Chinese leader Xi Jinping was not talking about him when he “very elegantly referred to the United States as perhaps being a declining nation”.
While he did not say where these remarks were made, Mr Trump claimed they were directed at his predecessor Joe Biden and claimed “on that score, he was 100% correct”.
He said: “President Xi was not referring to the incredible rise that the United States has displayed to the world during the 16 spectacular months of the Trump Administration.”
This included “…military victory and thriving relationship in Venezuela, the military decimation of Iran (to be continued!) — Strongest military on earth by far, economic powerhouse again…”
Mr Trump added: “In fact, President Xi congratulated me on so many tremendous successes in such a short period of time.”
The president had previously said his Chinese counterpart had offered during talks to assist in negotiating an end to the Iran war and reopening the Strait of Hormuz to shipping.
Mr Trump told Fox News: “He’d like to see the Hormuz strait open. He said, ‘If I can be of any help whatsoever I would like to help’.”
He also said Mr Xi had assured him China would not provide Iran with military equipment.
Iran’s stranglehold on the Gulf sea route since the US and Israel triggered the war has affected economies around the world, including the UK’s.
The effective closure of the shipping lane to oil and gas supplies has sparked a global energy crisis and sent fuel prices soaring.
The US has imposed its own blockade of Iranian ports in response.
A top US commander on Thursday told Congress that America had the military power to permanently reopen the strait, but would not be drawn on why this has not happened.
Admiral Brad Cooper, who heads US forces in the Middle East, instead referred legislators on Capitol Hill to the White House administration.
A separate naval mission ordered by Donald Trump to reopen the sea route lasted only a few days before it was pulled amid reports of Saudi opposition, with fears it could lead to more attacks by Tehran and threaten the fragile ceasefire.
Tensions continue to flare in the area, with one ship seized and another sunk after being attacked in the latest incidents.
Appearing before the Senate armed services committee, Admiral Cooper was asked if the US was able to permanently open the strait.
In reply, he said: “Without getting into specifics we have the military power, yes.”
On the ability of Iran to carry out attacks in the region, he said: “They have a very moderate, if not small, capability to continue strikes and we, of course, have accordingly prepared for such a contingency.”
He was pressed by Democratic committee member senator Elissa Slotkin, who asked: “But if we have the power to militarily open the strait and their threat is, quote, moderate or small, why wouldn’t we just do it?”
Admiral Cooper said: “I really would defer to policymakers in this particular matter.”
He pointed out the strait was the subject of ongoing negotiations.
Admiral Cooper also indicated the White House had been warned of the threat of Iran closing the sea channel in response to military strikes.
Responding to questioning, he said: “One of my responsibilities as a combatant commander is to generate a wide range of options with associated risks and opportunities and present those to the (defence) secretary and the president.”
And despite claims by Mr Trump of regime change in Iran following the military offensive, Admiral Cooper told senators the country’s hardline revolutionary guard was still “exercising significant authority”.
During Mr Trump’s visit to Beijing, it has been reported that Iran has allowed several Chinese vessels to transit the strait.
