Headlights illuminate a group of soldiers smoking and drinking steaming cups of coffee on the side of a road in northeastern Ukraine.
A fine sleet on another freezing night falls on the silhouetted barrel of a Soviet-era anti-aircraft gun mounted on an ancient, battered lorry.
These are the men of a mobile air defence unit, preparing for another night of tracking and attempting to shoot out of the skies the Russian drones heading for cities and power plants across Ukraine.
We joined the units over 48 hours in the southern sector of the city of Sumy, near the border with Russia.
Captain Serhii, of the 117th Brigade, is a commander in charge of 160 of these men in eight mobile units protecting this area of northeastern Ukraine.
We met up with him in an empty car park next to a high-rise apartment block in Sumy.
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Sitting in his 4×4 he squinted in concentration as his scanner showed a handful of drones on a flight path heading towards us from Russia.
Air raid sirens blared in the background.
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He signalled for us to follow, and he sped off into the night weaving through checkpoints along empty, darkened country roads.
He had said the drone was near, but we were confused when he suddenly pulled off the road and jumped out of his cab.
Within moments the skies were lit up by mobile anti-aircraft batteries firing into the sky.
Tracers from the bullets flew over our heads and above us we could hear the monotonous sound of the drone as it passed overhead.
Searchlights reflected off a dank, dense fog that had enveloped the countryside criss-crossed in the sky as the units tried to spot the drone.
They didn’t spot or hit the drone, and slowly the sound of its motors grew dimmer and dimmer until there was silence.
“You can see the current weather conditions, it’s foggy, so we’re basically working off sound alone, as thermal imaging and other devices can’t pick them up,” Captain Serhii told me.
“A spotlight is completely pointless, the speed of these drones isn’t particularly high, so technically, we could hit them, but the weather makes it impossible,” he added.
Every night across Ukraine the tarpaulin covers are pulled off these Soviet-era anti-aircraft guns and prepared for action.
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On battered trucks they rumble into the night to take up defensive positions.
These old guns are the country’s main defence against an increasing number of drone attacks from Russia.
The units here say they mostly encounter two types of drones which are usually deployed at the same time: Gerberas and Shaheds.
Gerberas do not carry an explosive payload but instead are designed to confuse Ukraine’s air defence, while the Iranian-supplied Shahed drones carry explosives with pre-programmed targets.
One of the soldiers, Volodymyr, tracks the drones on a handheld tablet. All the men wait, watch the screen, and listen.
“They generally fly between 200-300m up to 3km,” Volodymyr tells me.
“If they’re flying lower than 300m above sea level, the radar won’t pick them up.”
The men start to gather around their anti-air battery unit as a drone flies closer towards our location.
The gunner then jumps onto the truck and searches for the target on a radar attached to his weapon.
He will fire when it’s within a 10km range of his position.
The night-time silence in the middle of the field is suddenly shattered by the deafening sound of firing as the gunner goes for the drone.
Then in the fields all around us other units join the attack – it’s so dark we had no idea they were even there.
It’s absolutely relentless.
Captain Serhii tells me their critical job would be made easier with more sophisticated weapons like the American-made Patriot system.
“We need a stronger, more automated air defence system that operates independently of human involvement,” he said.
“Winter is approaching, and our guys who are on duty 24/7 will face incredibly tough conditions, they aren’t made of steel, so having an automated system would be ideal.”
He believes any political negotiations with Russia will just end badly for Ukraine.
“A frozen conflict is typically just a temporary pause, and you can’t trust [Russian President Vladimir] Putin, because any agreement made will likely work in Russia’s favour,” he told me.
“They’ll stockpile resources, more Shaheds, rockets, soldiers, even North Koreans, and then they’ll return, and they’ll come back stronger than they did in 2022.”
Donald Trump has suggested the US could take control of Canada, Greenland and the Panama Canal in a series of Christmas Day social media posts.
The president-elect wished a merry Christmas to all on his Truth Social platform, “including to the wonderful soldiers of China, who are lovingly, but illegally, operating the Panama Canal”.
In the lengthy posts, Mr Trump referred to the American lives lost during the canal’s construction and said the US “puts in billions of dollars in ‘repair’ money, but will have absolutely nothing to say about ‘anything’.”
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Panama Canal, strange sounds and Elon Musk
He also mocked Canadian Prime Minister Justin Trudeau as “governor” and again suggested the country could be turned into a US state – following similar comments made in recent weeks.
“If Canada was to become our 51st state, their taxes would be cut by more than 60%, their businesses would immediately double in size, and they would be militarily protected like no other country anywhere in the world,” he wrote.
In another post, Mr Trump, 78, said he had encouraged former ice hockey star Wayne Gretzky to run for prime minister but he “had no interest”.
He also addressed “the people of Greenland, which is needed by the United States for national security purposes and, who want the US to be there, and we will!”
It comes after Mr Trump renewed the call he made during his first term in office for the US to buy Greenland from Denmark.
The world’s largest island, which sits between the Atlantic and Arctic oceans, is 80% covered by an ice sheet and is home to a large US military base. Greenland gained autonomy from Denmark in 1979.
The island’s Prime Minister Mute Egede has insisted Greenland is not for sale.
Mr Trump has also previously threatened to retake control of the Panama Canal, accusing Panama of charging excessive rates to use the crucial trade passage and warning of potential Chinese influence.
Panama’s President Jose Raul Mulino previously said his country’s independence was non-negotiable and that China had no influence on the canal’s administration.
The canal is a critical waterway for world trade, connecting the Atlantic and Pacific oceans and allows ships to avoid lengthy and hazardous journeys around the southernmost tip of South America by cutting through the middle of the Americas.
After the ambitious project was opened in 1914, the canal and surrounding territory were controlled by the US until an agreement with Panama in 1977 paved the way for it to return to full Panamanian control in 1999.
China does not control the canal but a subsidiary of Hong Kong-based CK Hutchison Holdings has long managed two ports at the canal’s Caribbean and Pacific entrances.
A Syrian former equestrian champion has told how he was jailed and tortured for 21 years after he beat Bashar al Assad’s older brother in a competition.
Adnan Kassar, once a celebrated figure in the country’s sports scene, spoke to Sky News about his ordeal for the first time following the fall of the Assad family regime‘s more than 50-year rule.
He won multiple gold medals and captained the national equestrian team in the late 1980s, with his career peaking in 1993 at the third International Equestrian Championship in Latakia, where his flawless performance secured victory for the team.
Mr Kassar was a close friend of Bassel al Assad but the achievement apparently drew the ire of his fellow equestrian, who had faltered during the competition.
Bassel was the heir apparent to the Syrian presidency before his death in a car crash in 1994 led to his brother Bashar al Assad‘s return from London, where he worked as an eye doctor, to be trained to take over when his father died.
“The crowd lifted me on their shoulders. It was a moment of pure joy, but for Bassel, it wasn’t the same. That day marked the beginning of my nightmare,” he said.
Shortly after the event, Mr Kassar was arrested over vague accusations, which he said were fabricated as a result of Bassel’s resentment.
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He told how his detention turned into a prolonged ordeal marked by brutal interrogations and years of physical and psychological abuse.
“I was kept underground for six months, beaten constantly, and interrogated without end,” he said.
He was then transferred to the notorious Sednaya Prison, dubbed the “human slaughterhouse”, where he said “the torture only got worse”.
Mr Kassar said his treatment became even more severe after Bassel died.
“They blamed me for his death,” he said. “Every year on the anniversary of his passing, the torture intensified.”
He was also held for seven-and-a-half years at Tadmur Prison, which is also infamous for its inhumane conditions.
“They pierced my ear one morning and broke my jaw in the evening,” he recalled, saying acts as simple as praying were met with extreme punishment.
“For praying, they lashed me 1,000 times. My feet were torn apart, my bones exposed,” he said.
Many activists repeatedly raised his case following the outbreak of the Syrian revolution, which demanded the end of the Assad family rule.
But despite international appeals, his name was repeatedly excluded from amnesty decrees issued during his imprisonment.
Mr Kassar was finally released on 16 June 2014 after sustained pressure from international groups – nearly 22 years after his arrest.
Until now, he has remained silent about his imprisonment, fearing that any attempt to share his story could result in re-arrest and a return to prison, but has spoken out after Assad was toppled as Syrian president.
“After years of imprisonment, torture, and injustice, the revolution finally toppled the dictatorial regime,” he added.
The Azerbaijan Airlines plane that crashed killing 38 people was downed by a Russian air defence system, according to four Reuters sources.
The Embraer 190 passenger jet was en route from Azerbaijan‘s capital of Baku to the Russian city of Grozny in the North Caucasus on Wednesday when it changed course.
It crashed around two miles from Aktau in Kazakhstan while making an attempt to land after flying east across the Caspian Sea, killing 38 people and injuring all of the other 29 survivors.
The aircraft had diverted from an area of Russia in which Moscow has used air defence systems against Ukrainian drone strikes in recent months.
Mobile phone footage circulating online appeared to show the plane making a steep descent before smashing into the ground in a fireball.
Other footage showed part of its fuselage ripped away from the wings and the rest of the aircraft lying upside in the grass.
People can be heard praying as oxygen masks are lowered in the plane’s cabin in footage filmed by a passenger before the plane went down.
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Euronews, citing Azerbaijani government sources, reported a preliminary investigation found a Russian surface-to-air missile was fired at the plane during drone air activity above Grozny.
Shrapnel hit the plane as the missile exploded next to the aircraft mid-flight, according to the network.
The damaged aircraft wasn’t allowed to land at any Russian airports, despite requests from the pilots for an emergency landing, and it was ordered to fly towards Aktau, the sources said.
Kremlin spokesman Dmitry Peskov said earlier on Thursday it would be wrong to speculate before the end of the investigation into the cause of the crash.
Russian, Azerbaijani and Kazakhstani officials have all called for investigations into the crash.
Russia’s civil aviation authority, Rosaviatsia, said preliminary information indicated the pilots diverted to Aktau after a bird strike led to an emergency on board.
Azerbaijan is observing a national day of mourning, with flags lowered across the country on Thursday.
Traffic stopped at noon, and signals were sounded from ships and trains as the country observed a nationwide moment of silence.
Nazakat Asadova, the wife of survivor Zulfugar Asadov, said: “He got up early in the morning, prayed early and left the house at almost six o’clock.
“He said, God willing, at 12 to 1pm, I’ll be landing already. Then we heard on TV that the plane had crashed.
“Then his name came up on TV and on the lists. They said that people died, but Zulfugar Asadov survived.”