HONG KONG — The first presidential debate between President Joe Biden and former President Donald Trump offered little reassurance for restive allies of the United States.

The two candidates have distinctly different ideas about how to tackle the challenges of a world consumed by multiple wars, rising geopolitical tensions and doubts over America’s commitment to its longtime partners.

That contrast was occasionally on show Thursday night, but it was Biden’s performance that dominated headlines.

The debate was watched around the world — by allies anxious about their future U.S. ties as well as autocratic governments seeking to rival the U.S.-led global order — and neither candidate appeared to impress.

“Personal attacks, hazy memory, mocking each other… this debate was very entertaining for many Chinese people,” Hu Xijin, a nationalist Chinese commentator, said in a post on X.

“Objectively speaking, the low-quality performance of these two old men was a negative advertisement for Western democracy.”

But the focus was mainly on Biden, whose shaky performance has already brought calls from inside his own party for him not to move forward with his campaign.

The prospect of Trump returning to the White House is alarming for many U.S. allies in Europe, Asia and elsewhere, their ties with Washington having often been strained during his presidency.

The verdict of liberal Israeli newspaper Haaretz was that “meandering Biden, pathological Trump” had offered a “sad night for America.”

Germany’s Der Spiegel headlined “The President crashes.” And British tabloid The Sun had just one word at the top of its website on Friday: “JOE-MATOSED.”

With his “low voice, rasping and meandering,” Biden “lost the chance to convince not only American voters but also viewers watching in India,” Robinder Sachdev, president of the Delhi-based think tank Imagindia Institute and a founder of the nonprofit U.S.-India Political Action Committee, told NBC News.

Kim Darroch, who was the British ambassador to the U.S. during Trump’s presidency, said of Biden that it was “very hard to see him winning now.”

“I think he should stand aside. I mean, this was a historically bad performance,” he told BBC Radio Four’s “Today” program early Friday. “He was inaudible, incoherent, he lost his train of thought several times. Some of his answers made simply no sense.”

Policy clashes

During his presidency, Biden has sought to promote U.S. global leadership and strengthen relationships with allies around the world, particularly in response to growing challenges from China and Russia.

Trump, who has expressed admiration for autocratic leaders such as Chinese President Xi Jinping, Russian President Vladimir Putin and North Korean leader Kim Jong Un, favors a more withdrawn role while the U.S. focuses on its problems at home.

In the debate Thursday, Biden criticized his rival’s approach to Putin and Trump said the president’s policy on Israel meant he was effectively a “very bad Palestinian” as the foreign policy discussion centered on the wars in Ukraine and the Middle East.

Trump argued that the world has become a more dangerous place since Biden took office.

Putin says he will end his war against Ukraine only if Russia keeps all the Ukrainian territory it has already gained and Ukrainian President Volodymyr Zelenskyy stops pushing for Ukraine to join NATO, the U.S.-led military alliance.

Trump said he would not accept those terms, but that “this is a war that never should have started.”

“I will have that war settled between Putin and Zelenskyy as president-elect before I take office on Jan. 20,” Trump said, without explaining how.

He also criticized the $175 billion in military aid the U.S. has provided to Ukraine since the Russian invasion in Feb. 2022, including $60 billion in weapons and other assistance this spring that Zelenskyy says is crucial for victory over Putin.

Trump argued that countries in Europe should provide more in financial aid to Ukraine since they are physically closer to the conflict.

Biden said Putin has made it clear that he is seeking to re-establish the Soviet empire, and that Trump would be foolish to rein in support for Ukraine as it may be only the start of Putin’s territorial ambitions.

“He wants all of Ukraine. That’s what he wants,” Biden said. “And then do you think he’ll stop there? Do you think he’ll stop if he takes Ukraine? What do you think happens to Poland?”

Poland is a member of NATO, whose 32 member states have pledged to defend each other in the event of attack. Trump has threatened to pull out of the 75-year-old alliance unless those nations spend more on defense.

“We’re paying everybody’s bills,” he said.

Both candidates expressed strong support for Israel. As with Ukraine, Trump said Israel “would have never been invaded” if he were president, a claim that cannot be proved or disproved.

He also said Biden was not supporting Israel enough, saying “he’s become like a Palestinian, but they don’t like him because he’s a very bad Palestinian.”

Biden, whose cease-fire plan has stalled, has lost support on the left over the war’s devastating toll on civilians in the densely populated Gaza Strip.

Pushing back against Israeli Prime Minister Benjamin Netanyahu’s claim that the U.S. has been withholding weapons, Biden said the U.S. had provided Israel “with all the weapons they need and when they need them.”

The only exception, he said, is 2,000-pound bombs that Biden said “don’t work very well in populated areas” and “kill a lot of innocent people.”

He also said he had coordinated the international defense of Israel during Iranian missile strikes in April in which no one was killed.

“We saved Israel. We are the biggest producer of support for Israel of anyone in the world,” said Biden.

Both candidates said an election victory by the other would lead to World War III.

“His military policies are insane,” Trump said of Biden, adding that the Ukraine and Israel-Hamas wars “will never end with him.”

World leaders such as Xi, Putin and Kim “don’t respect him, they don’t fear him,” he added.

“You want to have war,” Biden replied, “just let Putin go ahead and take Kyiv.”

He added: “Then you have a war.”

He also defended America’s global image and said it was not a “failing country,” as Trump contended, but rather “the envy of the world.”

For the rest of the world on Friday, that was very much up for debate.