Several people have been killed after Russia launched its largest aerial attack on Ukraine since August.

More than 200 missiles and drones were deployed, Volodymyr Zelenskyy said, as he condemned a “massive combined strike” on “all regions”.

Andrii Sybiha, Ukraine’s foreign minister, said “peaceful cities” and “sleeping civilians” were targeted.

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Moscow is focused on the “energy infrastructure throughout Ukraine” and is trying to intimidate Ukrainians with “cold and lack of light”, Mr Zelenskyy said.

The president added: “The whole world sees and knows that we are defending ourselves against absolute evil, which does not understand any language but force.

“We need unity [and] the world needs unity. Only together can we stop this evil.”

Two people were killed and a 17-year-old boy was injured after a Russian attack in the Black Sea port of Odesa, regional governor Oleh Kiper said.

Energy infrastructure was damaged, he said, leading to “interruptions in the supply of heat, water and electricity”.

In Mykolaiv, southern Ukraine, officials said two people were killed in a Russian drone attack.

Ukraine’s state emergency service said a multi-storey building, cars and a shopping centre were hit.

Two women were killed and six injured, including two children, it added.

In the central Dnipro region, two people died and three were wounded in a strike on a rail depot, while in Lviv, on the border with Poland, a woman was killed in a car.

In the capital, Kyiv, mayor Vitali Klitschko said Russian attacks had caused a fire to erupt on the roof of a residential building, injuring at least two people.

People took refuge in metro stations, while emergency services were pictured removing part of a Russian missile from an apartment block.

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The Ukrainian military said it had destroyed 102 missiles and 42 drones launched by Russia.

Hypersonic missiles were among the 120 fired at Ukrainian territory, it said.

Air defences were active in “almost all” regions of Ukraine.

Equipment at thermal power stations has been “seriously damaged” during Russian air strikes, Ukraine’s largest private energy provider said. DTEK said its staff were working on repairs.

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Russia’s defence ministry confirmed it had attacked energy resources supporting Ukraine’s military-industrial complex, Russian news agencies reported.

Poland scrambled its air force early on Sunday because of the “massive attack by the Russian Federation using cruise missiles, ballistic missiles and unmanned aerial vehicles”.

Mr Zelenskyy sent his condolences to anyone affected by the latest Russian attacks.

He said “all necessary forces” were involved in restoring power and facilities.

On Tuesday, it will be 1,000 days since Russia launched what it calls its “special military operation”.

If you know a teacher, or you are a teacher, you’ll understand that many in the profession consider their jobs one of the best in the world, while also acknowledging it can be one of the most stressful.

Teaching in a war zone takes it to another level on both fronts.

But imagine teaching in a war zone in say the London Underground or the Paris or New York metros?

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Well, that’s exactly what is happening in Kharkiv, Ukraine’s second largest city – a city attacked by Russia on a constant basis.

In 2023, the authorities banned children from being taught in regular school buildings here because of the threat they were under from missile strikes.

So Kharkiv city and its education department started working on a plan.

That plan has concluded with the construction of six schools in six metro stations, teaching 4,800 children daily whose families haven’t fled the war.

Intrigued by this new educational experiment, as it’s still considered, we were told to meet at the University metro station in the centre of the city and wait to be taken to the school.

Soviet-era metro stations, and particularly the platforms, are universally grand and ornate, although Ukraine’s are slightly more modest.

Pedestrian walkways though are always crammed with florists, newspaper stands, mobile phone shops and cafes, and Kharkiv’s are no different.

What is different though is that next to the main platform entrance, an adjacent passageway has been sealed off by a white wall with three doors built into it.

We were ushered inside, past a guard and into a concourse with two desks.

In front of us, we could see a wide staircase leading to a long corridor. Above us, large, shiny silver metal tubes stretched into the distance, pumping in air from above ground.

Lining the corridor, we could see a series of white interconnecting cabins, all brightly lit, and from them, we could hear the sounds of children laughing, music, and teachers conducting class in this strange subterranean school.

Perhaps the only school in the world with one corridor.

A door to one of the classes opened, and in pairs, a class of six and seven-year-olds emerged – their teacher at the front and an assistant at the rear.

They’re heading to the bathroom for a toilet break, the staff must keep an eye on them.

If any of the children were to make it out of the school, they could easily get lost in the underground system.

The pupils are spread across seven classrooms with a mix of yellow and green desks and chairs, and walls decorated with bright pictures like rainbows, sunshine and sunflowers, to try to create a cheery atmosphere.

“At first, the children were bewildered by studying here, it felt unfamiliar to them, but interacting with each other and with their teachers helped them to adapt,” Iryna Tarasenko from Kharkiv’s education department told me.

Iryna is showing me around the school. They feel it’s their way of contributing to the war effort.

She said: “In the summer of 2023, the Defence Council didn’t permit children to study in regular school buildings, so, we had to find a solution. This is our frontline – our educational frontline.”

There are of course health concerns for both the teachers and the pupils spending so much time underground, so medical examinations are done on a regular basis.

It is an opportunity for doctors and behavioural specialists to monitor the effects of this war on them.

Dmytro Mitelyov is the neurologist on duty monitoring the children’s behaviour, checking for any signs of stress – physical and mental.

He gently asks each child how they’re feeling, and asks if they have any aches and pains.

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“These are children who haven’t left Kharkiv since the war began, they live in a constant state of stress, multifaceted stress caused by a range of factors. They are exposed to things they see and hear, like alarms, explosions, and they feel it all,” Dmytro told me.

“When these children grow older, all the trauma they’ve endured during their formative years can, unfortunately, leave a lasting and serious imprint on their mental health. They haven’t had a healthy, carefree childhood – the kind where they can learn, play, and feel safe as children normally would.”

As the first group’s school day ends, children from one of Kharkiv’s most bombed districts, wrap up warm before being led to the surface to catch a school bus to their old school – which was hit by a missile.

It’s still where they meet their parents for normal pick-up.

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We jump on the bus with them for the journey past destroyed government buildings, shopping centres and restaurants.

When the air raid suddenly sounds, I look around to see how the children and teachers on this bus will react.

They barely flinch it’s so common.

“People have, to some extent, adapted,” one of the headmistresses, Olena Nikolienko, said.

“If we see missiles coming, heaven forbid, we’ll stop near a designated shelter, following our evacuation plan, and that’s where the children will go for cover.”

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Remember, these children are safe underground at school, up here they are not.

During the bus ride, 10-year-old Alisa began quietly sobbing. Her teacher told me her grandfather was killed four months ago on the frontline, and since then she has been prone to tears.

Alisa’s teacher comforted her and told her everything would be ok.

It feels like everyone here has to carry their own sadness.

Everyone.

Parents, standing in the first snowfall of the season, greet the children as they get off the bus.

The kids run off the bus, and start throwing snowballs at each other, enjoying this precious moment.

It will be the last time they’re outside today.

Outgoing US President Joe Biden is set to meet his Chinese counterpart Xi Jinping today for what is likely to be his last time as US president.

The two leaders are expected to hold talks on the sidelines of a meeting of Asia-Pacific leaders in the Peruvian capital, Lima.

It comes against the backdrop of increasing tension in the US-China relationship with a potential trade war looming under a Trump presidency, several China hawks tapped for US cabinet positions and China’s growing status among global south countries as an emerging leader of an alternative world order.

This week China was focused on events in the southern city of Zhuhai.

First there was a car ramming attack at Zhuhai’s sports stadium which left 25 people dead. A shocking event that was heavily censored in China.

Less than an hour’s drive away the country was holding its premier air show.

It was a military enthusiast’s dream, and not even intermittent rain could keep the crowds of tens of thousands of people away from relishing in the roar of jets in the skies above Zhuhai.

China’s fighter jet fleet

One of the main drawcards was China’s newest stealth fighter the J-35A. It will join the country’s J-20 in service for the People’s Liberation Army Air Force (PLAAF).

The J-10C was China’s aerobatics star of the show. There were daily displays of its prowess in sky-high manoeuvres and formations that impressed onlookers, leaving a streak of colours across the cloudy rain-clogged sky.

China’s military modernsiation programme is continuing apace

It boasts the largest navy in the world and the largest armed forces by active-duty personnel.

The People’s Liberation Army (PLA) Airforce is developing fast too.

Dr Nicole Leveringhaus, a China security expert from King’s College London, says: “China started with very little. It was devastated by wars on many fronts in the 30s and 40s. Its defence industry was depleted. In 70-plus years it’s built itself up and now we’re seeing the results.

“It’s an impressive feat to go from a bloated land-based peasant guerrilla army to what it has to today.”

Chinese pride and nationalism on display

Enjoying the air show spectacle, military fan Liu Liansong said: “I think the air show is great. It is a firm manifestation of the air force’s development from scratch. We as Chinese people feel very proud.”

The air show included massive exhibition halls of military hardware, from drones to robotics, firearms and mock missiles. Merely getting from one end of the venue to the other through densely packed crowds was a mission.

Russia in the air

The other crowd puller this week was Russia’s aerobatic air force unit, performing daily theatrics at dizzying speeds.

It is another sign of the deepening ties between China and Russia.

One Russian tourist and recreational pilot, Yulia, told Sky News: “Both sides are looking for good communication in business, aviation and in many spheres including tourism.”

The secretary of Russia’s security council and former defence minister Sergei Shoigu also visited the air show, viewing both Chinese and Russian-made jets.

In Beijing, secretary Shoigu was quoted by Russian state media as saying: “I see the most important task as countering the policy of ‘dual containment’ of Russia and China pursued by the United States and its satellites.”

The West is increasingly frustrated by China’s support of Russia. The US has sanctioned two Chinese companies, accusing them of being involved in the production of Russian aerial drones used on the battlefield.

China insists it is not supplying weapons to Russia.

One of the companies, Xiamen Limbach Aircraft Engine Co, had a small stand in one of the exhibition halls. Its representatives declined Sky News’ request for an interview.

Tariff war brewing

Despite the raw military might on display in Zhuhai, in China there is uncertainty and unease about what an impending Donald Trump presidency will mean for global trade.

President-elect Trump has threatened blanket tariffs of up to 60% on Chinese products exported to the US.

This would be a serious blow to China’s target GDP growth and comes at a time when the country’s economy faces deep-set challenges.

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At the other end of the country, in Beijing analysts are weighing up the impact of possible tariffs and the Chinese government’s options to respond.

Senior Asia analyst Chim Lee, from The Economist Intelligence Unit, is not optimistic that a US-China agreement to minimise the damage can be reached.

“I think both sides have recognised that the era of making deals is passed,” Mr Lee said.

“We’re going to see China starting with some targeted measures, tariffs it feels more comfortable to impose,” he explained. “But there are also areas where China is starting to be a bit more aggressive.”

This action could include export controls on China’s production of critical minerals and retaliatory tariffs on US agriculture exports.

Trade competition, military posturing and complicated geo-political alliances have set the stage for a challenging next phase in US-China relations.