Donald Trump says he would end Russia’s war in Ukraine should he return to the White House – but any rushed deal will likely leave Kyiv much weaker and European security in even greater peril.
Another major flashpoint a Trump presidency would immediately seek to influence is the escalating conflict between Iran and Israel.
Mr Trump came close to direct war with Tehran during his first term in office and prior restraint could well give way to direct confrontation this time around.
Then there is the overwhelming longer-term challenge posed by China, with North Korea another growing headache especially after Mr Trump tried but failed to woo the leader of the hermit state during his first stint as commander-in-chief.
Image: Mr Trump meets North Korean leader Kim Jong Un in 2019. Pic: AP
With the US election on a knife edge, hostile and friendly capitals around the world have been gaming what a second Trump White House might mean for their respective national interests and for the most pressing global security threats.
Mr Trump’s track record of unpredictability is a challenge for traditional foes – but also for Washington’s closest allies, in particular fellow members of the NATO alliance.
The Republican nominee has made no secret of his frustration at how the US has for decades bankrolled the security blanket that protects Europe.
During his first term as president, Mr Trump threatened to withdraw the US from the alliance – a move that would almost certainly sound its death knell. His rhetoric did help to spur allies to dig deeper into their pockets and spend more on their militaries, though.
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But the damage of years of underinvestment is deep and the pace of recovery is too slow for European NATO allies and Canada to credibly stand on their own as a potent military force any time soon.
Image: Meeting Volodymyr Zelenskyy in New York in September – but what would a Trump presidency mean for Ukraine’s war with Russia? Pic: Reuters
In terms of immediacy when it comes to global crises, the impact of a Trump victory on 5 November would be felt most acutely by Ukraine and also by Iran.
The presidential candidate has repeatedly claimed that he would quickly end the Ukraine war, though without explaining how or what peace would look like.
In an indication of where his priorities lie, however, he has accused Ukrainian President Volodymyr Zelenskyy of being the “greatest salesman on earth” for securing tens of billions of dollars in weapons and other assistance that Washington has given to Kyiv.
Image: Pic: Reuters
Yet – coupled with Ukraine’s willingness to fight – that military aid is the biggest reason why Ukraine has managed to withstand almost 1,000 days of Vladimir Putin’swar.
Stop the flow of American weapons, and Ukrainian troops – despite their own ingenuity and the support of other allies – will simply lack the firepower to keep resisting the onslaught.
Image: Kamala Harris believes US support for Mr Zelenskyy and Ukraine is vital. Pic: Reuters
By contrast, US vice president Kamala Harris, who is vying for the top job, has made clear that she views continued support to Ukraine as being as vital to US and Western interests as it is to Kyiv’s – a far more familiar stance that echoes the view of her NATO partners.
While US support for Ukraine would undoubtedly change under a Trump administration, that is not the same as facilitating a complete surrender.
The former president – who portrays himself as the ultimate dealmaker and has adopted a new election slogan – “Trump will fix it” – will not want to be held responsible for the total absorption of Ukraine into Mr Putin’s orbit.
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2:22
How does the US election work?
Putin and Iran
His relationship with the Russian president is a particularly interesting dynamic.
But with the right advice, might a future President Trump be able to use his connection with Mr Putin to the West’s advantage?
At the very least, it adds a new level of unpredictability – which is perhaps the most important element when it comes to assessing the potential impact on the world of a second Trump term.
Image: Donald Trump said in 2020 ‘as long as I’m president of the United States, Iran will never be allowed to have a nuclear weapon’. Pic: Reuters
On Iran, in stark contrast to his approach to Russia’s war in Ukraine, a future President Trump may well back much greater US military support for Israel’s conflict against Tehran and its proxies – perhaps even direct involvement by US forces in strikes on Iran.
Mr Trump has an even tougher stance towards Tehran and its nuclear ambitions than Joe Biden’s administration.
His decision to rip up a major nuclear deal with Iran was one of his most significant foreign policy acts during his four years as president.
It is also personal, with Iran accused of hacking the Trump campaign in recent months – an attack that would surely only heighten tensions with Iran during any second Trump term.
On election night, Sky News will have access to the most comprehensive exit poll and vote-counting results from every state, county and demographic across America through its US-partner network NBC.
You can find out more about Sky News’ coverage here.
US President Donald Trump has told Gazans to hand over Israeli hostages or “you are dead”.
The threat, made over social media, came hours after the White House confirmed that US officials had broken with tradition to hold direct talks with Hamas.
The US has previously avoided direct contact with the group owing to Washington’s longstanding position not to negotiate with terrorists – with Hamas having been designated as a terrorist group in the US since 1997.
In a press conference on Wednesday, White House press secretary Ms Keavitt said there had been “ongoing talks and discussions” between the US officials and Hamas.
Image: File pic: AP
But she would not be drawn on the substance of the talks – taking place in Doha, Qatar – between US officials and Hamas, but said Israel had been consulted.
Ms Leavitt continued: “Dialogue and talking to people around the world to do what’s in the best interest of the American people, is something that the president has proven is what he believes is a good faith, effort to do what’s right for the American people.”
There are “American lives at stake,” she added.
Adam Boehler, Mr Trump’s pick to be special envoy for hostage affairs, participated in the direct talks with Hamas.
A spokesperson for Benjamin Netanyahu’s office said Israel had “expressed to the United States its position regarding direct talks with Hamas”.
Hours later, Mr Trump warned Hamas to hand over Israeli hostages or “it’s over for you” – adding: “This is your last warning”.
Image: Hamas militants on the day of a hostage handover in Gaza in February. Pic: Reuters
On his Truth Social platform, Mr Trump wrote: “Release all of the hostages now, not later, and immediately return all of the dead bodies of the people you murdered or it is over for you.
“Only sick and twisted people keep bodies and you are sick and twisted. I am sending Israel everything it needs to finish the job, not a single Hamas member will be safe if you don’t do as I say.”
Mr Trump met with freed Israeli hostages on Wednesday, something he referenced in his social media post, before adding: “This is your last warning. For the leadership of Hamas, now is the time to leave Gaza, while you still have a chance.
“Also, to the people of Gaza, a beautiful future awaits, but not if you hold hostages. If you do, you are dead. Make a smart decision. Release the hostages now, or there will be hell to pay later.”
Israel estimates about 24 living hostages, including American citizen Edan Alexander, and the bodies of at least 35 others, are still believed to be in Gaza.
Image: Donald Trump with Benjamin Netanyahu in February. Pic: Reuters
The US has a long-held policy of not negotiating with terrorists – which it is breaking with these talks as Hamas has been designated a foreign terrorist organisation by the US government’s National Counterterrorism Center since 1997.
The discussions come as a fragile Israel-Hamas ceasefire continues to hold, but its future is uncertain.
Image: Palestinians amid the rubble in the southern Gaza strip. Pic: Reuters
Mr Trump has signalled he has no intention of pushing the Israeli prime minister away from a return to combat if Hamas does not agree to terms of a new ceasefire proposal – which, Israel says, has been drafted by US Middle East envoy Steve Witkoff.
The new plan would require Hamas to release half its remaining hostages – the group’s main bargaining chip – in exchange for a ceasefire extension and a promise to negotiate a lasting truce.
Donald Trump has admitted his tariffs on major trading partners will cause “a little disturbance” – as China said it was “ready” for “any type of war” with the US.
The US president made his comments in an address to Congress, hours after the levies on imports came into effect.
Producers in Mexico and Canada have been hit with a 25% tax on items they export to the US, while a 20% tariff has been applied to Chinese imports.
Image: Donald Trump and Chinese President Xi Jinping. The US president has admitted his tariffs will cause ‘a little disturbance’ – as China responds. Pic: Reuters/AP
Stock markets, which Mr Trump is said to pay close attention to, slid on the tariffs news.
Exporters in the affected countries as well as businesses in the US and economists have raised concerns about the potential price-raising impact of the tariffs.
Making imports more expensive will likely make goods more expensive and could push prices up across the board.
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6:35
Trump’s Congress speech unwrapped
Concern over threat to interest rates
A cycle of high inflation could lead to interest rates being higher for longer in the US, the world’s largest economy, which could dampen economic activity.
A slowed US economy would have global consequences but even without a hit to the States, there are fears of a global trade war – in which countries add their own trade barriers in the form of tariffs.
The Chinese embassy in the US posted on X: “If war is what the US wants, be it a tariff war, a trade war or any other type of war, we’re ready to fight till the end.”
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Speaking to Sky News presenter Yalda Hakim the US former deputy national security advisor Matt Pottinger said Chinese president Xi Jinping was turning the Chinese economy “into a wartime economy”
“He’s preparing his economy for war so that it can withstand the shocks of war,” he said on The World with Richard Engel and Yalda Hakim podcast
“That means he’s willing to undergo massive inefficiencies in the economy. He’s willing to stockpile food that otherwise would flow easily and more cheaply in from foreign vessels.”
“He’s stockpiling copper and all kinds of inputs into the economy. He is making sure that the private sector is wholly aligned with his broad goals, which are about increasing the Chinese Communist Party’s control over the economy and creating a bigger, better defence industrial base,” Mr Pottinger said.
“He’s preparing for war.”
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Canada’s prime minister Justin Trudeau said his country was launching its own WTO challenge and described the US tariffs as a “dumb thing to do”.
He also warned the move by the Trump administration would impact American workplaces and add to inflation in the US.
Addressing the American public, he said: “We don’t want this… but your government has chosen to do this to you.”
Canada has announced the imposition of 25% tariffs on US imports worth C$30bn (£16.3bn).
But US commerce secretary Howard Lutnick struck a different note on tariffs and on Monday said the president will “probably” announce a compromise with Canada and Mexico as early as Wednesday.
China’s premier has warned “changes unseen in a century are unfolding across the world” as a trade war with the US intensifies.
Li Qiang was speaking in parliament – a day after Washington slapped another 10% tariff on Chinese goods.
Beijing has responded with 10% to 15% tariffs on US food and agricultural products.
“Global economic growth lacks steam, unilateralism and protectionism are on the rise… the multilateral trading system is experiencing disruptions and tariff barriers continue to increase,” Premier Li added.
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0:53
‘Whatever they tariff us, we will tariff them’
The Chinese Embassy in the US has also dialled up the pressure, writing on X: “If war is what the US wants, be it tariff war, a trade war or any other type of war, we’re ready to fight till the end.”
This statement was first made by China’s ministry of foreign affairs on Tuesday. The fact that China has repeated it two days in a row is significant.
It is a pointed message to the US that China’s patience is running out – and its rhetoric about the tit-for-tat tariffs is growing harsher. It has called the tariff war “pressure”, “blackmail”, a “smear campaign” and “shifting the blame”.
But Mr Trump loves imposing tariffs on China and appears convinced the pressure will work. He blames China for exporting the chemical precursors used to make fentanyl, which has fuelled the US opioid epidemic.
Meanwhile, China is facing severe economic challenges at home, with the country setting a growth target of “about 5%” for this year.
The government’s work report said a major task this year is to boost consumption and domestic demand.
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3:27
Why are tariffs such a big deal?
The problem in China is people aren’t spending enough money, instead they are cautiously saving. One reason for this is the weakness of China’s social welfare system. People save their money in case they lose their job, or to pay for health and elderly care.
The government says it wants to make domestic demand the engine of growth by turning several cities into “international consumption centres” – and expanding its trade-in system to encourage people to buy new products for the home.
Shopping aside, thousands of delegates from provinces across China attended including high-profile figures like former basketball star Yao Ming, and Lei Jun, who co-founded the electric vehicle manufacturing company Xiaomi.
After the session, delegates streamed into the square outside the Great Hall of the People. It is a chance to get their thoughts on the country’s future.
Congress delegate Liu Hui said: “I think tariffs will have little impact on China because we treat others the way they treat us.”
Another delegate from Shaanxi province, Song Yaping, is proud of China’s hi-tech prowess and said: “Our technology develops so fast, just look at DeepSeek, look at how fast our AI develops.”
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51:27
Peace in Europe, war with China?
Despite the confidence, the trade war is deepening.
In the factory heartland of Guangzhou in southern China, a glassware exporter is bracing for the impact of the latest Trump tariffs.
Marketing manager Anna said: “I think the people will discuss these tariffs and of course 10% is a huge number. Some companies can’t make a profit from this.
“But we can’t change it. We just have to get used to it and let it be.”
Still, letting it be is not easy in a world where it feels like everything is changing fast.